While most people on the right would love to see that idiot Harry gone, there is the nightmare scenario to consider:
we don't win the Senate, defeat hapless Harry, and end up with Smuck Schumer as the head of the Senate. He's even more liberal and much better at using the media.
The reality is - you'd really only want Hapless Harry gone if we are ASSURED of taking the Senate. Otherwise it's better to have that bugling fool remain in charge.
I think that is BS, you have to beat them when you can. Besides, it is not like the smarmy a-hole Schumer is a likebale guy. He is an abrasive jerk and would be hated just as widely as dingy harry in no time flat.