I've chosen to restrain from forming any outrage until I know what my new personal tax rate is and could spreadsheet the consequences to me.
What fun is that? :)
I think it is worth speaking up about though. The 401(k) is at its core middle income tax break. For each plan, the contributions for the highly compensated employees can't exceed (by much) the contributions for the lower level employees. The whole point is that it can't be used just for rich folks, the company has to figure out a way to bring in the regular folks too.
What Congress is proposing is limited the regular 401(K) part, and kicking the rest to a Roth 401(K). As has been discussed in the various traditional vs. Roth threads, traditional is the better way to go, for most people.
From a public policy perspective, I don't think this is a good idea. As documented many times on these boards, we are facing a retirement crisis. Not enough people have enough savings. Part of the appeal of the 401(K) is that you get the deduction right now. It is easier to save. I don't know how taking that deduction away will affect things, but I suspect it won't be beneficial.
But there is another problem here. Doing this would raise more tax money right now, but raise less money in the future, creating a problem for some future Congress. That's not good governance. It might win short term votes, but it isn't good leadership and it isn't a good way to organize the nation's affairs.
I approve of your policy of not being outraged until there is something to be outraged about. But we should be at least concerned. This is bad public policy and we deserve better from our elected officials.