For me the easiest tell is the up front, unprompted, and unsolicited declaration of nonpoliticalness. When someone takes the time and expends the breath to announce how nonpolitical they are, what follows is almost always a rant about how everything/everyone else is too political these days, and that of course leads into something between status quo advocacy and outright reactionary/regressive sentiments for some fabled time before those wicked politics were visible to the nonpolitical ranter. 
People that are hostile to service workers. Some just want to take some ideological stand against tipping when the service worker doesn't really have a choice and needs those tips to survive in the current unjust system in a way where ideological purity gestures toward that service worker just look like being a greedy and sanctimonious asshole. The worst of such people will actually declare, shamelessly, that they believe that service workers don't deserve a living wage. The implications of that are 
worthy.
I may get shit for this, but I'll say it anyway: this hair and beard combo, seen on living people. 
I have yet to meet anyone in person with that look that wasn't a chud.
(If one of you is a comrade with that look, I am sorry in advance for the prejudice and if I ever meet you in person I will atone by buying you a drink or something.)
I don't mean to disagree but
"Jesus was black
Ronald Reagan was the devil
and the government is lying about 9/11"
is a based take because Huey Freeman is probably the most based character in mainstream animation.
I think black peoples obsession with needing white approval and to be at the center of whiteness (in this case Christianity) is the worst thing about the black community. i mean i love the boondocks but yeah its a red flag irl. and its just antisemitic, jesus was jewish, he was persecuted for being an Jewish ethnic minority, pretending he was black to make you feel better takes away from his history. also its just anti intellectualism, another scourge of the black community. also the people who say this are that same people who couldn't name a single actual black pre colonial historical figure, not fucking one, MAYBE MANSA MUSA IF YOURE LUCKY. if youre not black you dont have to deal with these people on a daily basis. the amount of antisemitic ignorant shit I have to hear every time I go to any pro black space is insane, i cant take it anymore.
Mansa Musa is a boring figure. He was just some rich dude. Compare him with the founder of the Mali Empire and his grand-uncle Sundiata Keita.
i am LOVING all the cool African history everyone is sending me! thanks!
I kinda figured the whole joke about Huey was that while he's going in the sorta-right direction with regard to his age, he always goes about it in over-the-top and ultimately futile ways that really makes him no different from homeboy him and Riley were shading with the awful poetry at Mo's funeral.