The better someone is at Counter-Strike, the more of an asshole they are, which is completely counter-intuitive.
Yelling at your bottom fragger for tanking your elo does not make them a better player mid game, it only antagonizes them and makes them play even worse, tanking your elo further.
The optimized mindset for winning is stoicism, only focusing on the things that are within your control. You cannot chose your teammates in a solo queue, and you can't play the game for them. The best thing you can do is give your calls and play your best.
So if you want to be toxic, don't do it to the poor bottom fragger, do it to the other team, because at least then it helps you win.