Dbs, thank you for this most relevant and insightful post – it bothers me a lot when people get attached to goyim, quote their slogans, identify as one כת or another and get involved in fights that aren’t our concern. The Torah tells us to be loyal citizens, but that is not dependant on the party in power.
I’m curious, perhaps one of our pre millennial posters can tell us if yeshivos ever had students say the pledge of allegiance? I would feel positively about it, but of course I’d never suggest a change to chinuch without the advice of gedolei yisroel