Republican pickups don't necessarily point to fraud. None of the contested swing states stopped counting votes. As I've explained before more than once, they stopped updating the vote count, and mail-in ballots were not counted in some states until election day, creating a backlog of ballots. As for supposedly unconstitutional last minute election law changes, none of these were contested until long after the elections were over and Biden won those states, a sign of political gamesmanship by the GOP. The courts both state and federal did the right thing by not disenfranchising votes that were cast in good faith by legitimate voters.
If anyone here us denying reality, it's you.