You need to chill out. People are going to be trying new champs, builds, and off-roles in norms. Doing poorly is not the same as intentionally feeding. You probably should just stop playing in preseason because preseason is always full of massive balance issues which leads to one sided matches. which you apparently can't handle. People are going to want to try the new reworks and nobody gives a shit if you get mad about it.
This is the worst type of player. Toxic little child throwing a full blown tantrum because people don't tryhard their mains every normal game. Go play ranked then. Let me guess though, "BUT I DONT LIKE RANKED QQQQQQ". Well then tough shit because if you want to play a competitive game but not play the competitive mode then you'll get no sympathy