It doesn’t seem like very good evidence that there was fraud in 2020, in the sense they even if (and it is an if) we end up with a decrease in turnout this year

It doesn’t seem like very good evidence that there was fraud in 2020, in the sense they even if (and it is an if) we end up with a decrease in turnout this year, there’s no particular reason to believe that people didn’t just… vote more when the pandemic was happening, they had more time to sit around, and mail in voting was easier. Is it possible that the people pushing this idea are just engaging in motivated reasoning?