You're hoping that people won't bother to read said Wiki, or get confused by the legalese.
Papadopoulos: Indicted for making a false statement to FBI.
Manafort and Gates: Indicted for not registering as foreign agents of Ukraine (which, you might have noticed, is sort of an enemy of Russia right now)
Flynn: Indicted for making a false statement to FBI. (Forced by lack of legal fees into pleading guilty, which later caused problems when the government tried to drop charges.)
Pinedo (Who? Exactly): Indicted for identity fraud.
van der Zwaan: Indicted for making false statements (and not an American, anyway).
Cohen: Indicted for making false statements.
Stone: Indicted for making false statements and witness tampering.
Then we have people like Carter Page, whose name was raked over the coals for years because a FBI lawyer intentionally altered evidence (https://www.nytimes.com/2019/12/09/us/politics/fbi-ig-report...) showing that far from being a Russian asset, Page had for years briefed the CIA every time he met with suspicious Russians. (Got to love how the Times describes said altering evidence as a "serious error".) You want an actual Russiagate-related indictment and guilty plea? Kevin Clinesmith, said FBI lawyer, is your man.
Manafort and Gates: If your defense is that since Ukraine is an enemy of Russia, and therefore there can't be any pro-Russian agents there, I have bridges to sell you.
Flynn: Yes, he lied about meeting Russian ambassador Sergei Kislyak about setting up encrypted channels to Russia.
Cohen: Lying about business developments in Russia (money is always a nice motivator in crime).
Stone: Had contact with Russian state hackers about the DNC hacks.
Donald Jr wasn't indicted for anything, but he managed to incriminate himself all on his own volition on twitter: https://www.nytimes.com/interactive/2017/07/11/us/politics/d...
The most charitable interpretation of this whole thing is that the Trump campaign were too stupid to qualify as collusion (but I think they were fully aware), but were instead pawns: https://www.reuters.com/article/us-usa-trump-russia-senate/s...
The "unrelated" is completely false, which invalidates your entire argument.
Name an American indicted for unrelated crimes and maybe I can fill in the connection. It's mostly covered in the wiki under each of their paragraphs though.