I suspect that you’re right, livius, but we cannot give in, at all. I’m sure that the Church has some modernist, or perhaps ill-formed folks who somehow try to reconcile a desire to get along with true Catholic teachings. But in this, they cannot, at their own peril. The line drawn is the expected one, and we cannot give in.
I hope and pray that the evangelical groups, or perhaps at least some of them, see that while we are the primary target, this will eventually affect all Christians that don’t tow the progressive line. On the other hand, to be quite blunt, there is nothing in my life as valued to me as my faith.
I think some Evangelicals will stand up, but the problem from an institutional point of view is that they are very fragmented and it depends on their pastor. I’m Catholic and I live in Florida. All my Evangelical friends here go to “their own” church. While in theory they all subscribe to the general outlook described as “Evangelical,” there’s no unifiying institutional bond and each church is basically a free agent.
But as you say, the important thing is the Faith, so regardless of how few or scattered we are, all we people of good will are going to do our our best to maintain it.