What the current president does now has no bearing on what was done then, with a somewhat functioning Supreme Court and an adversarial Congress. The conspiracy theories spread by Snowden helped lead to Trump, and that is the main point I want to get across. While spreading his conspiracy theories, he also helped the CCP, and that is something for which he would stand trial for in the U.S.
If he stayed in the U.S., his punishment would already be over. Now with the current president directly telling DOJ what to do, who knows what would happen if Snowden were to stand trial today, but that isn't a possibility Snowden faced when he fled.
You have zero moral ground or credibility to stand on.