401K and debt

Polls show that many people are are willing to accept higher taxes to pay for programs like green energy and free college. Some are willing to take assets from rich people in the form of a wealth tax. Both of these groups assume that none of their money or assets will be taken. The assumption is that some rich person will pay for this but there are other ways. For example, the current national debt is $27 trillion and there is about $29 trillion in 401K plans. The government could confiscate these funds and pay off the debt. That sort of puts a different light on the situation but it would be an egalitarian thing to do since the rich have the most in these accounts.