That's a totally unrelated issue. And just some grandstanding by Trump.
Besides, Zuckerberg has more than enough money to evade US law if he needs to (and that's if Trump can manage to make such BS into law!). Even Snowden has successfully done that and he wasn't even rich.
He's not really at risk of going "to prison for life".
If Trump wanted to, he could simply send the marshals to arrest him. Zuckerberg has a lot of ability to evade, but it's not infinite.
Trump probably was just grandstanding there. He makes hundreds of meaningless threats per day, to make it impossible to tell which ones he means to carry out. But they do cause fear, because you can never be 100% certain. And not even other oligarchs are safe.
Besides, Zuckerberg has more than enough money to evade US law if he needs to (and that's if Trump can manage to make such BS into law!). Even Snowden has successfully done that and he wasn't even rich.
He's not really at risk of going "to prison for life".