I'll indulge the strawman.
Yes, it should apply equally to all politicians with the appropriate due process. Correct me if I'm wrong, but I don't recall that Trump been criminally convicted of insurrection in a court of law. Most legal pundits on both sides of the aisle don't believe the Colorado decision will hold up to judicial scrutiny.
Trump has made his own bed and has to deal with the legitimate consequences and prosecutions. However, some, or at least one, of his prosecutions are very questionable and/or grossly overcharged. The current civil fraud trial in New York is the prime example. While I don't condone lying on a financial statement, most loan applications exaggerate assets and none of the lenders incurred damages (real estate asset valuations are very subjective). In fact, the lenders testified that they didn't rely on his embellished financial statements nor did they incur any damages. Can you show me someone that has been prosecuted in NY with this same fact pattern? Combine this with the judges ridiculous and completely unsubstantiated claim that Maralago is only worth $18mm, and its obvious this is hardly a good faith prosecution. Do I feel sorry for him? No, but it feeds into the narrative that the government has been weaponized against him.
There is a saying that "pigs get fat, and hogs get slaughtered". The Dems are in hog mode, aka desperation mode, because they realize Biden can't beat Trump in the voting booth, so they will try anything to get him off the ballot.