Of course you can. They can impeach anybody for any reason. We elect our representatives, and the people that we choose to elect, we are hiring them to decide whether to impeach anybody. That’s one of the powers that they get with their offices.
If you think they should have impeached but they didn’t, then hold them accountable for that. If you think they should not have impeached but they did, again, hold them accountable for that.
The decision is purely up to them. They have that lever to pull if they want to and we hold them accountable for whether they do or they don’t.