As an example of people being concretely impacted by climate change now, you are citing projected sea level increases. I think you could have probably picked a better article to prove your point.

That aside, the point I'm making is that it would still be much cheaper to relocate people from those coasts (in the immediate future) and engage in emergency preparedness than it would be to substantially mitigate our emissions output.

In the long term, that fucks us, but most voters aren't long term thinkers.