I can almost guarantee Roth IRA holders will get screwed in the future. At least 401k holders got a tax break on the front end. Also, most middle class workers have at least something in a 401k, especially since companies are moving towards an opt-out model on 401ks. Relatively few Americans use Roth IRAs and most are "high" income types.
Politically, it will be a slam-dunk to tax the crap out of money coming out of Roth IRAs in the future.
I'm trying to imagine under what political circumstance the Roth IRA would have its basic premise completely up-ended. Between a breach-of-contract and a gaggle of irate retirees, I see no slam-dunk here at all.
Politically, it will be a slam-dunk to tax the crap out of money coming out of Roth IRAs in the future.