[yukinon]

>It's also not their fault for being mean to you for legitimately ruining their game.

It is 100% their fault. Whatever circumstances befall someone, it doesn't give them the right to act toxically and insult and degrade others. There's a difference between being angry (an emotion), and channeling that anger into a negative interaction. They're perfectly capable of controlling themselves and not throwing a tantrum like a child.

It's not about helping out the noob, it's about being civil.