You can build houses which are much less likely to be seriously damaged in a hurricane. Some more ambitious designs are virtually hurricane proof. You never see high rises knocked over by a hurricane, for instance. Because they are (mostly) built correctly. Otherwise downtown areas in the entire Gulf Coast, Mid-Altantic, would simply not have existed for more than a few decades.

The same goes for floods. Most of the problem with floods, is that the house frame and flooring are made of wood. And wood rots. If you live in a flood prone area, the first floor at least, should be brick or stone for just about everything. Yes its expensive. But so is is $800/month flood insurance. Or having the federal government bail you out and passing the cost on to the taxpayer

But building things correctly is more expensive, and Americans love their cheap McMansions.

Also, on an individual level there is less incentive to build correctly, because you will almost certainly not get a discount on insurance. 99% of the population is at the whim of either buying a used house, or whatever the builder's models are for new construction. Its really only possible if you are very wealthy and build your own house on your own plot.