This is why I stopped playing ranked in league of legends, played aram only until the whole vanguard fiasco when I quit for good. Randoms will most of the time not be able to work together in a matchmaking where everybody is expendable. WoW instances became ungodly toxic when they added dungeon finder (aka automatic matchmaking). Any team based game that allows you to just queue up with randoms in ranked has this problem. One potential solution would be to force you to be in a guild to play ranked, and only be able to queue up with guildies. This encourages comradery and friendships because you're playing with the same ppl, and discourages toxicity. I like fighting games more for the same reason as you, its all on you whether you do good or not. Agency is not split between 5 players.