Being kind is an act of revolution
In this world, there is already so much to be hurt by. Hurting others seems to be the status quo. Why contribute to that? Why not be a contrarian and be kind to others?
It's so easy to be "nice," and so many people don't even try to clear that bar. Being kind? That should be easy. If someone is having a bad day, the least you can do is not make things worse. Even better: see if they're okay.
It's also so easy to talk about the things you dislike, and to belittle things that you see as "lesser" while you feel smugly superior. The revolutionary act is to share in the joy of the things you like, and to be excited about things, and to let other people be excited about the things they like. And, who knows, maybe you'll come to like new things if you just give them a chance.
The world already has enough hate. Bring in some fucking HOPE.
And choose love.