Why are people allowed to ban your intended pick

Is there any reason why they cant just make it so it is impossible to ban something that someone intends to play. I have never seen a situation where someone banning a persons intended champion didn't end up creating the most toxic game imaginable. It always ends up being someone just outright dodges or the person who got their champion banned afk, feeds, or just trolls the person who banned it all game long. The whole thing seems so easily avoidable. Why even have pick intent when sometimes people are gonna be dicks anyway.
Reportar como:
Ofensivo Spam Mau comportamento Fórum incorreto