How about some more simple logic:
Republicans added Congressional seats; Dems lost.
Republicans won additional state legislatures; Dems lost.
Republicans held their Senate majority despite having had way more Senate seats to defend.
And Donald Trump lost??? Reverse coattails??? Makes no sense.
I want to see how many Biden ballots had no other votes for down ballot races. Every one of those otherwise blank ballots should be viewed with much suspicion.
Joe "The Sleeper" wrangled more votes than Saint Obungler ?
And you wonder if there is any anomaly or inconsistency there ?
Even the brain-dead don't support or elect a 'bunker hidin' for a leadership office.
Your logic doesn’t hold up. If ballots for only Biden made the difference, then Trump’s vote totals would be equal to his GOP compatriots. Biden’s number would just be higher. But that’s not the case. Trump got less votes than the GOP Senators in states where they won and he lost.
Besides that, if Dems engineered election fraud, why in the world wouldn’t they fill out the whole ballot for Dems?