You will be setting a new world record for ludicrously hyperbolistic narrative if you try to equate the drivers for those three things and today's social, socioeconomic or political disagreements.
Not to mention you still haven't made any kind of case at all for why demonization or hatred are somehow helpful here.
mildone: the two parties solve nothing through demonization
abc: the left is twisted and evil
mildone: okay but I'm pretty sure they think the same about you
mildone: also pretty sure nobody on either side cares what the other side thinks
abc: the left is twisted and evil
mildone: mm hm, you said that already
mildone: hatred and demonization haven't been working, try something different maybe
abc: the left is twisted and evil
mildone: lift the needle off the record dude
abc: rev war civil war civil rights, so there
mildone: huh, well, that's sure different alright