I started this game when it first came out, and quit after a month of intolerable toxic behaviour including the same old team killing, or worse, injuring teammates deliberately and not being penalised for it.
I restarted a couple of months ago, and nothing has changed, even the Report feature is pretty much useless as players continue to harrass, abuse, and TK on a daily basis. Ubisoft can't control it.
The only viable option is to provide an FF OFF mode. You don't like it, don't play it, play the other modes. Why not have such a mode for people like me sick to death of abhorrent behaviour?