I Don't Like Hero Bans At All

I hate them now.
They were cool at first, never seeing Hulk ever again, but now they're used to ban counters to some characters that without their counters just run amok and are unstoppable, and several people have tried to, and sometimes succeeded, in banning Rocket because they saw that I had him pre-selected and they think he's garbage.

I've had to play 4 matches now in Diamond where the enemy team banned Namor and they had a onetrick cracked Spider Man. Just instant gg, nobody can do anything about him once Namor is banned.
There's no way to beat this, you just lose. End of.