Having different sets of principles for different groups of people is what one calls partisanship; and partisanship is a very critical problem in the US right now.
With whataboutism, everything is OK then, as you can always find something worse to confirm your bias.
Besides, I find it disingenious to equate lies about election fraud without evidence leading to riot and assault on core democratic process, and people fighting/defending the right not to be assaulted and killed by armed police.
But that argument is besides the point of this issue.
You are confused; I didn't give Trumpistas a pass, I accused the other side of having double standards. Ergo, not whataboutism.
You are well within your right BTW to find the comparison disingenious. I find it too. However, I'm not interested in giving one group of people power to do whatever they want without legal repercussions and enforce it on another group of people. Should the law not be equal to all?