Nobody told you the killing would stop if Trump won. The minority of people in the U.S. who have a serious problem with genocide (enough to push them to action) mostly expressed extreme disillusionment at a political system where genocide has become acceptable enough to vote for across a broad majority of the population, and an unwillingness to support anyone responsible.

Your logic of “one genocide supporter would be worse than the other” is not compelling to anyone who’s thought about it for more than a few minutes.