Actually most of the “Progressive caucus” opposes American intervention abroad and are just as isolationist as Trump’s “America First.” They oppose building up the military, and regard defense contractors as evil war-mongering capitalists (and in their lingo, “capitalist” is a pejorative).
The ones who support Taiwan and Ukraine, are the RINOs (Reagan Republicans) and DINOs (cold war Democrats in the Truman/John Kennedy model), and there are the ones who support Israel. Though not very enthusiastically (note that none of them favor cutting the domestic spending or raising taxes, meaning they are willing to come up with the money to match China/Russia/Iranian military spending).