Airport security theater and ID mandates; the AUMF; mass domestic spying, extent unknown but normalized and unquestionably at a level 20th-C. Americans would consider completely unamerican. For a start.

I think it's status-quo bias to look at this picture and think the high-order bit is that yes, temporary emergency measures were temporary. In the bigger picture there are dozens of separate national emergencies getting repeatedly renewed, https://en.wikipedia.org/wiki/List_of_national_emergencies_i....