We have already begun to see this. The middle class is no longer expanding, nor is the poor (by meaningful terms). Worse, the poorest class - largely made up from immigrants - legal or otherwise - are being driven away.
Life in the US has been relatively comfortable for a few generations now. So current healthy (age-speaking, not fitness) generations have no idea how to revolt. Ironically, we may see change come from the southerners with guns who eventually decided they had been deceived by the people they voted for. After all, both sides cowered on Jan 6. Just imagine if "representing your constituents" was a do or die scenario. The US is mostly far from that scenario if a supreme leader is not directing the masses.
Unfortunately, as with many other fallen empires, I think it will take a LONG time for things to recover. The idealistic principles which the US claimed to be founded upon are largely not present now - the freedom from oppression, the freedom of/from religion, and the concept of fair representation.
