Holding games hostage

One youtuber made a video on this and it kind of just disappeared so I'd like to bring it up again. Something I feel should be considered a form of inting or negative attitude is holding games hostage. Basically, you refuse to cooperate with your team, causing what could be an easy win to be a much more difficult win, or even causing a loss.

Examples The Yasuo on your team is pissed off at you and the team so he goes off and just split pushes for the rest of the game, never grouping with the team, even when it's convenient, intentionally leaving the rest of the team to a 4v5. (This one actually happened to me) Tryndamere is mad at you so he says in chat "k you guys are retarded, im just gonna split push for the rest of the game. Have fun with the 4v5." He does what he says and refuses to leave his split push, no matter what.

This is by far one of the most annoying types of passive aggressiveness in game. It is obviously ineffective and doesn't help at all to win the game, and these guys know it. So they go and do that to intentionally make the game much harder to win. This is definitely a form of inting because they are trying to lose the game, but if you don't want to go that far, it should at least be considered a form of negative attitude.

This isn't exclusive to someone split pushing, it's also someone afking at their tower and only farming, for the same reason. It also includes for junglers them never leaving the jungle and afk farming (No I am not salty over a jungler who didn't gank for me so don't start with that in the comments).

This is something really annoying and should definitely be dealt with. And no, I am not saying ban every fucking person that tries to split push, I'm saying review the game and see if they are really doing it as their winning strategy, or if they are just doing it because they don't want to play the game anymore or they just want to be a dick.