You are inventing that anyone is condoning killing innocent's BUT that's not even important.
You get to pick, you want more deaths, less deaths, or don't care.
There are no other impacts you can have with your vote.
If you care deeply you can join marches and protest. The many people who are doing so will gladly tell you Harris is not doing enough, but that it would be idiotic to not vote for her.
That is not in agreement with exit polling, what is your source?