To not prosecute is to make security clearances and classified material meaningless and worthless, something every good Snowden, Wikileaks supporters, fellow Marxists, and other totalitarians would cheer ... along with everyone anywhere who every gave at thought to harming the US ...
True if prosecutions are dropped altogether. But they won't be. The so-called "Rule of Law" is always selectively enforced.
The security laws would still apply to people like Snowden. Just not to the elite who of the globalist bent.
I’m not sure what makes you think the marxists are for whistle blowers messing up the police state as it goes about violating the constitution acting like the KGB. They hate the constitution. They want a global government that is marxist.