The likelihood of Kyle winning any substantial monetary compensation for the slander and libel that he has endured is very low. However, even if he was considered to be a "public figure", that does not make it impossible to sue for defamation, it only increases the standard from "negligence" to "actual malice". I don't think it's a particularly hard argument to make that the people who defamed Kyle acted with actual malice, as they have repeatedly displayed. In terms of monetary award, he is likely to get very little, as he was 17 and lost no income or assets as a result of the defamation, then damages would be very small. The protests calling for him to be excluded from his university course because he is a "white supremacist" could actually strengthen his case for damages based on loss of likely future earnings. Here, you have the material impact of Biden's defamation playing out in the spotlight for all to see. Time will tell. It is highly unlikely that he will get a large payout as Sandman did, because the payout was basically to prevent discovery from occurring, which would have very likely uncovered much more damaging information on the legacy media companies that they were willing to pay hundreds of millions of dollars to stop coming out. Kyle has no such leverage, he's just the victim of people being utter jerks, and also the victim of having really shitty criminal defense attorneys who almost lost an unlosable case, and corrupt prosecutors who tried an unwinnable case that they knew from the start to be baseless.