It's hard to build a case that only the Republicans are picked on and special rules only apply to them.
As long as you ignore that Trump, who's tough stance on immigration (except Saudi Arabia of course), has a wife that didn't enter the US properly. Kind of amusing since many of his supporters claim to be all for immigration 'as long as it's done right'.
Also, you need to ignore that despite multiple objections from his security advisors, Trump pushed through getting his daughter and son-in-law security clearance. A man with zero political or national security experience making the final call on national security. Huzzah.
You're also going to want to ignore that two of his closest advisors and his former campaign chair and co-chair were convicted of multiple crimes. He probably had no idea they were shady people and certainly isn't an extension of himself.
Speaking of shady, you're going to want to also ignore that the president's own 'charity' foundation was shut down and ordered to pay millions due to illegal conduct. But money laundering, tax scams, and the hiring of undocumented workers (yay, more projection) are no big deal. Especially for the President of the United States.
On a side note of Trump's "charity", I have to mention how hilarious I thought it was when Elise Stefanik (R - NY) pointed out how improper it would be for a president (Biden, potentially) to have a son (Hunter) that had sat on the board of a corrupt company like Burisma. She literally made the case that Trump shouldn't be president during impeachment hearings. I didn't tune in for much of the hearings but if I missed more zingers like that, I'm sad I passed up on them.
The list goes on: Trump ignoring that we have a 1st amendment and telling congress(wo)men that they can't criticize America while he's president, making fun of disabled people, or the simplest example(s) being Trump's outright lies that he gets way with.
None of these things were acceptable 10 years ago regardless of your political party. And these are just Trump things. I didn't even touch McConnell and his stack of unvoted on bill by the 'Do Nothing Democrats', Biden and his repeated fucking gaffes at ANY microphone (Howard Dean wants to know how Biden isn't fucking canned by now), etc.