Well, here's the thing: There are a lot of ways to steal an election. Cook the books. Change the rules illegally at the last minute. Hire operatives to troll for votes in places where there is known Democrat sentiment, and "helping" incompetents to fill out their ballots. So while Biden got the votes necessary to win the counts, but the votes that took him over the line were bullshit votes.
The Left today has shut down all discussion and even thought of these realities, just as they shut down all discussion and thought of Hunter Biden's laptops being legit, and they shut down any discussion and thought of the President's mental deficiencies.
Refusal to acknowledge reality does not change reality.