Since he explained incels, let me explain cucktears:
Losers with a left wing bias who are not satisfied with their current status in society, they feel inferior to their peers for one reason or another. Since they can't have a positive feedback for diverse reasons (they are weak, dumb, mentally ill men who think they are women) they need to lash out on someone. Well, lash out on people of color is not acceptable (except if they are indian or chinese men), their indoctrination does not permit that, their indoctrination does not permit to bully or stalk any politically correct target. So what they do to feel better about their pathetic existences? They bully those that the media permits it, incels, antivaxxers, religious people etc. They will never address the arguments of the people they mock, one because it's not possible for them, since they have no sustainable arguments and two because it's not of their interest to argue or listen to the other point of view, but to mock and feel superior to the only people they can feel superior.