From Lion King? Of course it's pretty obvious.

Even if he was the rightful king, he sure did a poor job of acting as such.

Scar was a pitiful existence and a sad sad cat, I've never seen a villain as consistently depressedly indolent all throughout as him

Also he was a selfish king who nobody liked.

A poignant addendum to my description

Bruh people starved under his rule

He was going to let all of Pride Rock starve to death. He also committed mass murder which the Lion Guard that IS canon shows. Not to mention he tried to rape Sabari. So yes he is pure evil for a reason. The live-action Scar is toned down compared to the original but is still irrdeemable.

Rape? Damn do you know what scene?