Why do leftists always complain about their world leader, even when they were the ones who voted them in the first place?

At least conservatives don't complain about the leaders they vote in. Leftists, on the other hand, constantly complain about Keir Starmer, despite voting him in.
Why do leftists always complain about their world leader, even when they were the ones who voted them in the first place?
Why do leftists always complain about their world leader, even when they were the ones who voted them in the first place?
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