If there is prolonged, heavy rains, people living near rivers are more prone to flooding...
This is indeed true, and is one of the reason why so many towns are built on rivers, the flooding naturally re-fertilises the land however Hua Hin rarely experiences prolonged heavy rains, Hua Hin gets short heavy rain.
Isn't Hua Hin by the sea? Surely the water can exit at that point. Oh, that's right - there are buildings in the way.
No, the sea is in the way. Hua Hin has sufficient drainage to cope with most of the rain that it gets, it's only when heavy rainfall meets high tides that the water has no where to go, you can't hold back the tide by pushing fresh water at it. This would happen even if there were no buildings, but no-one would notice nor care. I presume you are not suggesting that the entire population is moved elsewhere (perhaps to Ban Pong) and the area razed, that's just moving your perceived problem elsewhere.
"Failing to prepare is preparing to fail".
Being over-prepared is as bad as being unprepared. Squandering money on something that may or may not be needed isn't exactly the best use of government resources. If it became economically unviable to maintain businesses and homes in flood areas then either cost-benefit will eventually fall to the benefit side and the problem will be resolved or people will simply vacate the area to one that is less flood prone. Somewhat like the submarine issue that's going on at the moment, 36 billion baht for what, or the high speed trains at 716 billion baht which is nearly 1.5 times the entire education budget. This may prove your point a little, even with planning the wrong decision can be made (over and over).
I'm one of those crazy people that thinks that only those who can raise a child properly ... That's a whole new thread though
That's definitely a whole new thread, but on the subject of IQ levels I would have thought you'd have preferred keeping the lower IQ group intact as they are less likely to be able to grow (in a technological sense) than the 'smarts'.
Evidence is hard to come by when certain evidence depicts Thailand in a lesser light than it wants be.
If it's hard to come by then perhaps that's because there is none, or perhaps it's being hidden - I don't know.
Crime will get stronger in Hua Hin over the next decade. More farang attacks will be heard of due to a weak economy and a hatred of whites (amongst some). Growing debt and less jobs (for the average man) will also ensure that crime grows significantly in Hua Hin over the next decade.
That's quite an assertion and probably not backed up by much, yes, you could look towards Pattaya and Phucket as more developed areas that appear to have more crime but you also have to consider the number of people in both, Pattaya (the town) has some 105000 people living in 23 sq.Km, Hua Hin (the town) has about 50000 people in 85 sq.Km. You would need to check whatever stats are available to show that higher density implies a higher rate of crime not just a higher number of crimes.
I doubt very much that racial tensions will ever really reach the highs that westerners have managed to take them to in the past (and in some places in the present). Thailand is very protective of both it's workforce and it's land, the two things that people strive for - a means of income and a place to live. I personally don't see a lot of the usual xenophobic lines trotted out against non-Asian foreigners (they're taking our jobs - they're buying up all our houses), simply because non-Asians can't blend in. Xenophobia here is against other Asians who could conceivably pass for Thai and take jobs from Thais.
And on the subject of jobs and unemployment, Thailand's ageing population and improving education has started to bump up the (miniscule) unemployment rate. An interesting part of that is shown in this report
http://web.nso.go.th/en/survey/data_sur ... July58.pdf where the largest group of unemployed are actually those with a higher education. Obviously there are jobs available as Thailand has some 1.3 million registered workers are from Myanmar, how many more are unregistered one can only guess at, but those Thai's with a higher education either feel that manual labour is beneath them, or their families have sufficient funds for them to wait for a job that pays back what they paid to be educated to that level. These people are unlikely to be the source of the rise in crime you predict, and basic income jobs are still available for those that choose to work rather than turn to crime.
This last part was a little childish.
All four of those points were very tongue in cheek. The point I was trying to make is that you can do only what you can, if you are on a mission to change the behaviour of everyone Hua Hin (and those outside that supply Hua Hin with it's needs) then you are on a hiding to nothing.
As for your "breaking point" defined as
The point when neither nature nor the dumping of different nationalites/races, can work in harmony with the aggressive money grabbing philosophy of certain people.
well nature has already lost in every small village, town, city and country in the world, unless that is you subscribe to the theory of evolution and the general history of the Earth and accept that humans are the direct product of the last 65 million years of relative stability and therefore are part of nature.
I don't see the mix of nationalities and/or races as being anything other than good for the human race as a whole, not just Hua Hin. The blending of different races gives each of us some foothold in, or some belonging to, those races and there might come a time when so many people are of 'mixed race' that it's not possible to determine what races they are mixed from. Much as it might upset the Politically Correct brigade, being different is not usually the source of harmony and not usually celebrated; sameness is the source of harmony. When you can't distinguish between peoples and you can't pigeon-hole them or stereotype them, it becomes harder to encourage people who look and act the same to rally against them.
I'll leave you with one question:
On the assumption that your original post was decrying the ongoing expansion and development of Hua Hin, in what sometimes appears to be a rather haphazard manner, who is it that you want to 'save' Hua Hin for and what condition would you like to see Hua Hin 'preserved' in.