Unwarranted Pessimism?

I was accused of "unwarranted pessimism" regarding my last post. I stand my ground.

The "science is settled" that sea levels are rising and that all of our coastal cities will be drowned within about two decades. No one in government at any level refutes that, in fact all government backs it unreservedly. The most dense population of this nation, some 40% of our people, will be flooded out of their homes in about twenty years.

Is anyone, one single person of authority, proposing a solution that consists of moving those people to higher ground? No. The universally proposed remedy is to stop the oceans from rising.

I repeat. The ship is holed beneath the waterline and is sinking fast.