Do you think genocide is bad or not? If you think it's morally reprehensible, then why are you voting for a candidate that's abetting genocide, thereby personally making you complicit in genocide?
We're already "complicit in genocide" via the taxes we pay and the goods and services we use, per your reasoning. The only way I can have "clean hands" is to renounce my American citizenship and move elsewhere.
If you think voting is the only way we become guilty by association, you're being disingenuous. The "morality" of America's government has nothing to do with my personal morals.
I'm voting to keep an autocrat out of office. If the situation/policy won't change no matter who gets in office, then I'll vote for Kamala Harris (which I already have) and sleep good at night.