I am 90% certain we wouldn't have scored without Dembele in that game. There's more to football than just assists and goals.
Let me guess, because he's fast right and his existence was a threat? I agree, that doesn't actually mean his performance was good nor that he's a good player. Which is the point you people seem to be missing. Daniel James or some other speedster from the championship could have fulfilled the same role Dembele did against Kiev. There was literally nothing remarkable he did during those 20mins.
But you can't even give him a little bit of credit, it's tiresome to argue with full-blown haters. I am not his biggest fan myself, but there's more than black and white.
Then don't argue, it's that simple; rather than complaining about the exhaustion of arguing just don't do it.
If you find yourself in one extreme you are usually wrong (applies to everything in life).
Appealing to moderation is a logical fallacy. Literally wrong. Try harder.