It kind of depends on the alternative, doesn’t it? If Trump were removed from office we’d get President Mike Pence. That would be an acceptable outcome to a lot of people. But the Democratic nominee in 2020 isn’t going to be anything like Mike Pence. It will be the most radical nominee in American history.
So, yeah, maybe a guy wanted Trump impeached. That doesn’t mean this guy would voter for any of these people who hate America, and may hate him.
But it’s hard to get someone to vote for a person they don’t like, and a lot of people don’t like Trump. But nobody liked Nixon, and he got 61% of the vote and 49 states. President Trump would settle for that.