IF it's hurting Donald Trump all he has to say is "This Qanon stuff is a bunch of kooky nonsense."
CLEARLY it's not hurting him. It's helping him. The ones mocking it and deriding it the most are leftists. Which means they KNOW that it's helping him and not hurting him.
Whether it's true or not is irrelevant at this point. I wouldn't doubt if it WERE a psyop to jack up Trump support.
If it were not true, or if it were hurting him, he would disavow it. Sarah Huckabee has been asked a few times about it already. All she would have to say is "The President appreciates all the support he can but this qanon does not come from Donald Trump or anyone associated with his administration."
Why doesn't he do this?
Trump doesn’t acknowledge Q because Trump is not a kook. Would you expect Trump to say, “All this talk of extraterrestrials building the Great Puramids is nonsense?” Of course not, because only a nutjob would even consider such a possibility.