(Being pedantic here) A couple US states technically use proportional representation in the apportionment of electors in a presidential election (Nebraska and Maine), although it’s of course dubious if an elector actually counts as a representative, given how ephemeral they are.
It’s unfortunate that there’s a kernel of truth in both! Obviously red guy is bad and if you’re thinking in the medium-term of the next five years (the context of the election) then it really is that simple.
I do want to emphasize though that there is a lot that has to be done outside the ballot box. Even if you just want status quo, a Harris government would need to be badgered heavily to actually pass the sort of legislation needed to mitigate the imminent threat of climate change (in addition to most other policy changes you’d want or need).
Climate Man isn’t going to swoop down from the sky and save the world. Normal people need to see politics as a proactive, regular part of adulting. If you’re planning on voting this year, consider also having the goal of (if able) attending a protest or donating to political organizations you agree with this (or next) year! Lets make government suck less c: