Yeah, it's a shame. Halo has always been like this though.It actually hasn't been if you were a player back between Halo CE and Halo 3. The community was actually quite wholesome.
Once we hit Halo Reach though things went south fast because a lot of the little kids migrated from CoD to Halo.
Personally that's why I always ask my potential teammates what their first Halo was and if they answer Reach or 4 they get a one strike policy where if they are toxic once I just leave.
Don't mean to be rude, but I'm curious - why would you be more lenient on certain people's toxic behaviour at all? That doesn't really make sense to me.
More on topic, but this game really needs some kind of report feature. Personally, the slurs never bothered me (And before anyone says anything, I do
belong to minority groups which are frequently used as insults, thank you), but that doesn't mean I expect other people to just brush potentially very hurtful insults off like I do.
That being said... it's the in-game stuff like team killing
I can't stand, and I've seen quite a bit of it actually - a lot more than I remember from games past, anyway.