I don’t see a decline in US capitalism or (US-style) imperialism anytime soon. It seems extremely well positioned to continue to be the #1 world power and influencer, even if its regional political and economic influence wanes a bit. US foreign policy is that of a bully in the sandpit who breaks any toy denied to him. Domestically, from the outside it looks like an absolute shitshow, with the masses cheering with hysteric enthusiasm as they are thrown one by one to the lions.