Why?

I usually try to address what people say, instead of speculating about things like their lack of virtue? Speculation like that is grist for discourse, but that discourse is useless if it doesn't match people's perceptions of themselves.

If you think "[progressives] tend to reject the difficult, the messy, the complex" is a criticism, then you are also criticizing conservatives who campaign on exactly those principles. If you want a faction that does not reject difficulty, you may have to create something different from any we have now. You might also have to exclude humanity from that faction, but now we are getting into Christian principles lol.

OTOH, if you think it is praise, then you should work on an "ecumenism of sharing" since in your view, progressives and conservatives have common values. (Attitudes toward the death penalty reflect this kind of situation: some people on both sides accept an inherent messiness that invalidates use of the death penalty.)