First of all, you might as well one would be helping Harris by not voting for Trump lmao. Why would not voting for either help one of them?
Also, while I would have her win if I had to choose between the two, I don't like her at all and wouldn't bother voting if I lived in the USA. The impact of a single vote is so small, even in a swing state, and the chances of one's vote being the decisive one as well, that I really wouldn't place much importance on whether I vote.
Of course upholding a system of social incentives for voting by shaming those that don't vote for your favourite candidate might make sense, I think it also promotes a very toxic political climate.