Well, at least they are honest about their stupidity. I live in Japan and am constantly shocked how many raised SUVs with the oversized max-grip tires in cities. Japan used to be a "doing it right" country in terms of not going overboard with waste. If you asked them why, they would probably say "it's cool!".

Turns out humans will always choose status symbols and vanity over facts. Oh well

From what we've seen, so far the (not projected to be underwater) coastal areas might be the areas spared in this scenario too, because being by the water still moderates temperature swings.

It's everywhere else that'll be getting record breaking heat/drought and snow, which have been far more damaging. The disaster radius of hurricanes reaches far more inland than just the coast.

Your relatives clearly aren't MAGA if they're not concerned about what rising sea levels will do to Mar-a-Lago.

I mean they're right, rising oceans will be a drop in the bucket for the majority of us. Unless we act together, human civilization will end through the combination of breakdown of global trade, mass migration due to heat and resource wars, and collapse of our food chain. Ocean levels are just one of the side effects that goes along with rising global temperatures.

Beef production in the US is already down from 30 years ago. At some point you won't be able to raise cows anywhere, less alone feed them. Corn and wheat have seen tremendous fluctuations in the past and will likely continue to fall. Imagine corn yields dropping by more than 80% in the US [1]. Of course MAGA people will probably only notice once the shelves aren't being restocked.

[1] https://www.pnas.org/doi/full/10.1073/pnas.0906865106