Well, to be fair, two of the people making these proposals are actually sitting US Senators whom, if I remember right, could actually propose these plans right now. In fact, both plans could indeed be through committees before November.
While I generally agree that there's little chance for any tax plan to make it through congress, I can guarantee that plans that are never submitted are absolutely never going to get passed.
That’s a point. Bernie Sanders is a sitting Senator, too. He could give his proposals a legislative innings.
I think that the way the discussion is framed, however, is partaking philosophically of the concept of one-man rule, a President who’s in charge of everything, rather than in charge of as little as possible. That’s not the government our Founders were after.