Although many of your points above have merit, there are a couple of differences:
Hunter had his jury, suspect all if not 10 of the 12 were Biden voters
I don't think there was a Trump voter on his jury
Hunter's case was held on his home turf, Trump's was not and should have been moved to another venue
I could be wrong but in reading about the case i did not see anywhere the Judge prevented a key witness from testifying (this was my main point of contention from me in the Trump NY case) nor did judge in the Biden case get in a tussle with any pro defense witnesses. He played it low key and let the defense do their job.
Hunters' defense team and the US Justice Department almost got a get out of jail free card but another Judge stopped it
Most of us would have been much more accepting of a Trump felony if it the case would have been held in another venue, under a different judge and the judge would have appeared to act more impartial. None of those occurred so Trump had much more to yell about and it has merit, the amount is certainly debatable.
Example, if Trump gets convicted in the Florida case, and if he loses the election he certainly could, i suspect you get little or any blowback from myself or anyone else on this board. its his homecourt and a sympathetic judge.