mate I don't need to watch a demo to know you're where you belong
it's how matchmaking works, you play against people of your own skill. If you're better you can carry yourself and make the difference to get >50% wr
if you're not, you stay or go <50% wr
and I know you understand it, you're just trying to make yourself feel like it's not you it's your teammates. it's the usual "i'm only silver because of my teammates, otherwise i'd be 3k elo"