No, it's a still a binary choice in the end. Whatever people do before election day or after it, on election day their choices will be "Vote for the less bad genocide enabler" or "Vote in a way that ultimate helps the much worse genocide enabler gain power" (and that includes not voting).
None of which means that people should stop putting pressure on Biden's government to end the genocide. Part of the argument for why Biden is the less bad choice is precisely that it is more likely that he can be affected by public pressure on this issue. So yes, absolutely, apply that pressure. But be careful how you do it, because the danger, as others have pointed out in this thread, is that once you create this mini-avalanche of "Genocide Joe" negative publicity around Biden, you won't be able to stop it before November.
I don't know where the line is there. It's a very difficult path to tread correctly.