Because there is no answer to that question that will ever satisfy the radical left. You can do and say whatever you want but if radical left declares you are racist/sexist/homophobic/etc. there is nothing that will make them change their minds. To many examples of people pandering to them in hope they will leave them be and being attacked at the slightness transgression of their crazy beliefs.
In your mind what would happen if Trump would say "Yes, I condemn white supremacy in all shape and form with all my mind, heart and soul". Would anyone on the left say "It's great he said those words"? BS there would be "Trump "says" he condemns, but...", "If he truly condemns white supremacy then he must do...".
There is no end to that with radical left, so at some point you have to just say "I will not participate in this s**tshow, enough i enough". And they will screech and they will yell, because they cannot control you anymore.