The hypocrisy does cut both ways. There weren't any Republicans in Congress speaking out against Trump's efforts to subvert democracy long after the electoral college had cast their votes on December 14th. To the contrary, Sen. Josh Hawley was fist pumping the protesters on the morning of January 6th and giving them encouragement, even though there was no longer a pathway within the framework of the United States Constitution to victory for the 2020 Trump campaign. As recently as this past week, the 2020 Trump Campaign still had litigation pending in effort to overturn the results of the Presidential election.
If these are now the rules for how to deal with losing an election, then that is fine... but both sides get to play by them. This sort of tit-for-tat was predictable. The 2020 Trump Campaign laid down the blue print, while Republicans allowed this sore loser conduct to become established precedent. This is just how it is going to be from now on whenever we have a close election.