It's good that you question the notion of impeaching Biden for purely partisan purposes but the real problem with your construction is making it a both-sides argument. The Clinton impeachment was purely performative. He lied to a grand jury about a consensual, if inappropriate sexual relationship. Nobody in the real world gave a damn about the impeachment efforts or the reasons behind them and Clinton's approval ratings grew stronger throughout the process in some measure due to the blatantly partisan nonsense.
Not a thing Clinton or Biden has done in office compares with insisting on a political quid pro quo to release Congressionally-approved funding to a foreign nation or incitement of insurrection against the Congress and your own VP to overturn an election.