Courts have not (yet) ruled on the merits of this case, only on the question of standing. The prospect today, is that with some prompting, Congress may exercise a ministerial action and address it instead.
And, if you recall, the certification of the 2020 election occurred in an "emergency" J6 session of Congress, which exempted its results from review by the Supreme Court. Some have speculated that was the intention of the set up action by the Capitol police that day.
Of course there was election fraud in 2020. Sure, Courts “could” address it and come to the conclusion you support.
Lemme know when that happens.