people are upset about the new changes, and instead of being rational or attempting to figure it out, wait for other people to figure it out, or get over their internal fear of change, they're joining games in it with the intention of feeding, trolling, and intentionally ruining the experience for everyone else because they feel their experience has been ruined.
From here, you have 2 main options. option 1 is to blame riot, start joining games as ekko and spamming "zaun is the future" while running into the enemy team, while also complaining constantly about the new system.
option 2 is to blame the ekko, report him, try to keep a positive attitude, maybe take a short break and wait for all the people who are intent on ruining everyone else's games because of the new system to give up, accept the new system, or quit, and just try to enjoy the game.
it's a good system, nearly all of the unfixable faults of it are caused by players who hate the new system, not by riot.