Why am I constantly getting matched with 40% win rate teammates ?

I have a 70% win rate on my smurf, used to be higher, but I got 0/10 teammates on my team so much, I can't even carry them in silver. Then I started to check their profiles and I consistently saw that they're like 100 games played at a 40-45% win rate. And it happens literally 90% of games I'm in. Just now I q-ed up and checked my whole team, 2 were at 44% win rate and other 2 unranked. Like what the fuck ? How can I not look at this as the system trying to drag me down or some shit ? Just give me good players so I can leave this elo faster and don't have to smurf anymore.
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