people are unwilling to call out

You are not supposed to react or even engage with stupid people like that. Actually that is probably perfect way to react to it since they are after reactions after all. So by doing that you take their win from them by not engaging.

However, if you want to "win" a group in more "brutal" way, then you can use all kinds of interesting loaded words that have bad history connected to them. Like even the most basic use of N word triggers so much in a black person in the US that is really the perfect attack word against them.

The key is obviously to use the most horrendous word against the target's culture/background in order to trigger blood movement from lower extremities into brain so the other person would get red eyed and ultimately triggered by hardcore rage. Luckily for you every culture has bad words like the N word in them so you can attack practically every group wherever the world you just happen to be at. Don't you just love how diverse our attack words are and yet have so much in common that all of our ancestors have essentially paved all of our vocabularies with so many "fine and dandy" words that can trigger practically anyone anywhere in the world? All ethnic groups are all open for an attack! Amazing how powerful a stupid made up word can be.

And remember kids, rage leads the blind, so you can be in complete control of the situation. I bet if you keep the attack on going then it could lead to them bursting out in rage and attack you physically, meaning you get to legal murder them. Ain't that great about self defense laws in most part of the world? Verbal attack is excusable, but physical is a big no-no. What a wonderful world.

Anyhow, as you can see, reacting is probably the best action you can take, unless you want to "cleanse" the world and use legal self defense laws against them. In that case, trigger away brother and may your crusade lead the stupid away from my goddamn Earth!