Sure there will be lots of wars and famine but predicting human extinction as a result of climate change is a bit of a stretch. Even in a bad scenario where 99% of humanity dies off things could still turn back around, regrow and we try again for an advanced civilization in a couple millennia.
Are sources available on these claims, particularly the first one specifically it being the least likely voter demographic? I keep seeing this stuff talked about but also hand-waving that it’s been debunked and I’ve been too wrapped up with life to investigate. I’m not hopeful that credible and clear evidence will show up enough to get widespread attention about vote hacking but I wouldn’t be opposed to hearing more come out either.