> I'm fascinated how people don't seem to be receptive to your promotion of positivity (by how you've been downvoted)

I think some of it is down to how as a species we are tribal by nature, and we have to work hard to get past that and start seeing one another as companions by default, rather than adversaries. There's a time and place for healthy competition and sportsmanship, but issues like politics, religion, and race should not be competitive at all (edit to say I get that politics is a competition/popularity contest, rather I mean that one should be able to support an ideal or a specific candidate without being seen as "the enemy").

A nice ritual (at least pre-covid) for the times and places for healthy competition and sportsmanship is to shake hands before and after, to put parentheses around that competition.