I learnt something about people.
If someone says (or writes) "I hate all [insert a human group here]!". A second person says (or writes) "I hate some [insert whatever human group you put in the first part here], because [provide good, logical reasons here]". The first will get support, love, acceptance. The second will get hatred, rejection, critique, tons of downvotes.
Socially powerful people hate without reason.
Socially low people hate with reason.
Socially powerful people hate all people of a certain group. They have the power and strength and confidence to do so.
Socially low people hate a few. They are timid, careful, unconfident, they don't have much strength and energy.
People will often side with people they think are socially powerful, while victim blaming and dissociationing with people they see as socially weak.
When you hate all people of a certain group and with no reason, people see you as powerful and sexy, someone they want to support and befriend. When you hate some and with reason, people think "you are socially outcast and weak, those people treated you badly, I don't want to be with you, I want to be with those leaders!".
Btw, I hate all people of certain human groups. No reason. ;)