What is up with this week?

All week long I've been seeing nothing but extremely toxic people playing piss easy champs and thinking they are so good. One game I played Mundo and they had a Warwick jungle and I beat him in a 1 on 1 and spent the rest of the game saying how easy and noob Mundo is. I played support one game and my ADC kept over extending and getting caught out and kept saying how bad everyone else on our team was. I know this community is complete shit but I've never seen it this bad.