You may be missing the point. When you look past the double standard, the criminality (collusion, corruption, embezzlement, lies, favorable pardons and lack of prosecution) is disproportionately on one side.
And of course there’s the tiny detail that Trump had to conquer the corruption of the Republican Party first to even broach the Democrats. See all the #nevertrump senators that prioritized #resisting Trump in spite of their constituents and his support amongst the party.