If we are talking about Harris in isolation, well I agree. She is a horrible choice, better than Biden, but one of the weaker Democrat choices overall. We could have done way better.
That said, comparing her to Trump well.. Trump is a laughing stock screaming in debates about immigrants eating dogs while we all laugh at him, he acts like a complete lunatic.
The only thing Harris actually has going for her is that the person on the other side somehow manages to be as bad, maybe worse, than her.