That's a good point. The "but racist Trump spoke to an all-white audience" meme started with Don Lemon on CNN only a few minutes after Trump finished his speech. And naturally Lemon, Van Jones and the other libs on Lemon's always-liberal-majority panel shouted down the few conservatives who were (barely) allowed to speak.
Don Lemon substitutes charges of racism for journalistic talent. Not unlike the way Obama substituted charges of racism for any kind of talent. (Some say Obama has been successful in all but destroying the US. That doesn’t require talent, however. It merely requires virulent hatred of America coupled with an enabling, supportive ‘opposition’ party and an embarrassingly fawning press.)