I detest Trump’s actions, but that doesn’t mean I support Biden. In fact I shall not be voting for Biden or Sanders in the Primary or CT State Democratic convention. I have made my point in my local Democratic Town Committee that both of these men are too old to start a 4 year term as President. They have had their time in elected office and it time for new faces.
As to the accusations of the OP. Vice Presidents have no power except to break ties in the Senate. They stand in the wings, fill in for the President at funerals and inaugurations around the world but cannot hire or fire federal officials. I doubt there was an impeachable offense. Much of what Biden is accused of happened when he was not in office (after January 20, 2017 and therefore not subject to impeachment.