I can’t seem to understand the r/blackpill

I just subscribed today and I’ve been reading a few threads for a while and I have mixed feelings, I am myself a skinny, ugly (almost bald, very poor and socially isolated guy) but I don’t understand how come so many people on this platform are so angry at females when the premise of this platform is: to not give a FUCK about anyone and get through life?! I see a lot of people being angry at everyone. At females, at rich people, at beautiful people as well as at the poor people. I don’t understand how a person can be so resentful towards so many people at once. I don’t understand why the need to vent at so many people and be angry at them. I guess I just don’t understand because I am just a regular person (who just happened to have a very hard life) I don’t get it.