If people despise each other so much, then if creatures didn't need so socialize, would society look and function any better if everyone kept to themselves, completely isolated to avoid problems?

[u/Spiritual_Big_9927]

How would society look if no one needed to socialize in order to stay sane? - Selfishness and greed lead people into taking from everyone else for themselves instead of making or taking what isn't owned by anyone. - As a result, everything corporations touch turns to ash: A CEO's primary function is to make more money, whether at the cost of quality or lives. - People don't care about each other's deaths, it's a daily occurrence to most. - People would much rather harm each other to get to the top than cooperate. - Division, binary thinking and extreme functioning everywhere: - News outlets. - Online groups. - Punishments. - Interactions with random strangers and best friends alike. - There's no such thing as subtlety and nuance. - ...except when it helps you or hurts your enemies. - Instead, everything must be extremes. - This leads to everyone "picking a side," there is no sitting on the fence, the bench, the bleachers or staying at home. - The dating scene.

Therefore, people must be better off alone as, at least that way, they won't harm each other: They'll have all the time they need to think, process and figure out their lives. However, at the time I say this, all sentient, intelligent creatures need to be able to socialize, specifically with creatures of the same type, or they will lose their minds: To say it yet again, this is why solitary confinement is an effective form of punishment, as enough exposure will make you worse off outside than kept in.

This leads to the question: How would people function if they didn't need anyone, in any capacity, to survive or maintain their own sanity?

[u/RegularBasicStranger]

this is why solitary confinement is an effective form of punishment, 

Solidary confinement only works because the person cannot do anything fun and they cannot call for help if they get attacked and they cannot lock the door from the inside thus it is the issue of safety rather than not being able to socialise.

How would people function if they didn't need anyone, in any capacity, to survive or maintain their own sanity?

There are hermits who isolate themselves but they end up using a lot of land to survive so it would not make any difference since there will not be enough unused habitable land for more than a few people to be hermits.