AUTOFILLED

I am so sick of this god damn role in diamond. Today alone I have played 10 games, and every single god damn game has had someone say "hurr durr im autofilled can I xxx?" I just dodged a game because Riot DEADASS gave me 4 support mains on my team, so a support main jungle, support main mid, support main adc, and a support main support. What the actual hell is this bullshit RNG? Theres no way to rank up in diamond, its literally impossible.