Dems' Radicalization Is No Surprise?

Dunno.

I've worried about basically this, though.

I doubt that it matters right now. Right now we have to beat them and break their hold on the institutions of power. If the left can be moved back toward the center, we might then have to think harder about whether they have a tendency to radicalize "in their DNA." But right now, we just have to beat them before they wreck the republic.