

Well, there’s a chance he will if trump won’t get elected. Last time he was close to ending up in jail, but got pardoned by trump (BTW: US works with a wrong precedent that started with Nixon, the president should only be allowed to pardon only after there is a conviction, otherwise it allows for shenanigans of making others do crime for you, giving a blank pardons or even a possibility of pardoning yourself).
The other two who didn’t get the life line from the White House got 3 and 4 years: https://www.cbsnews.com/news/brian-kolfage-andrew-badolato-sentenced-prison-we-build-the-wall-steve-bannon/
That’s how spoiler effect work (another technique used by Republicans to kill the vote of anyone who otherwise would work against them).
If you want to make 3rd party a real option, push your local politicians to adopt Ranked Choice Voting, like Alaska and Maine did.
Voting for Jill Stein or Cornell West with First Past The Post (current system) has the same effect as not voting at all.
Those people don’t register enough popularity to even be eligible for a debate, there’s a snowball in hell chance of them even winning a single county.
Also Jill Stein was cooperating with Kremlin in 2016 election and helped trump by squashing some votes for Hillary.
https://www.nbcnews.com/news/us-news/why-are-senate-russia-investigators-interested-jill-stein-n831261?cid=par-aff-gray
Edit: best demonstration how GOP uses 3rd party candidates is this election for spoiler effect.
RFK Jr declared that he was running (I guess that were going that his last name will steal some Democrats). As stats were showing that he actually was pulling trump’s voters away, he just suspended his campaign and of course endorsed trump (hoping that his voters will switch back to him).
Don’t get fooled, until we replace FPTP, 3rd party candidate has mathematically no chance of winning and voting 3rd party is pretty much same as voting for GOP. Whatever you can say about Republicans their party ALWAYS votes on every election (including those smaller every 2 years), and Democrats only win if their base bothers to show up.