>I guess I'm in the minority, there's no point in trying

Thats exactly how it is.

Look at the current politics discourse. Even now, in the presence of ordinary people, there can be a conservative who supports Trump, but you are supposed to be "nice" to them, because its all just political opinions, and those ordinary people are removed from the real destruction of lives that the current administration carried out for many people.

Same with global warming. People are far removed from the real effects, so most people just don't actually care.

And in the same way that all the anti vaxxers who got covid and urged others to take the vaccine before they died, people need to get hit over the head with reality before they start to care.

The only way forward that doesn't involve mass famine/death is some low level societal control that forces people to behave for fear of real consequences.