I have no friends because i disagree with people too much
I have had friends in the past so I'm not incapable but we shared our common interests and didn't talk about anything controversial.
I have a number of dealbreakers that make me want to isolate myself, such as different politics, (extreme) religion, hatred of animals, racism, sexism, homophobia, bullying others for looks... or at all, heartlessness (I disown people if they're Katie Hopkins fans), inconsiderate smoking (not outside), disbelief in sexualities, disbelief in/disrespect to any mental illness, stereotypes, extreme pro-life stance (or anything that seriously impedes "live and let live if it hurts no one else").
I don't want anything to do with these people because I can't trust them. I actually think I'm reasonable and open-minded, these are just the serious things that I can't understand why people would be like. In fact I have respectfully disagreed with people on big topics such as feminism and euthanasia.
Maybe I need to meet more people because someone always seems to have one of these obnoxious traits. I'd rather be alone than have to put up with any of this.