Yes, I believe empires are resilient, or at least resistant to change. This is a common feature of consolidated economic and political power - but that's obvious. To me, the more interesting and unique historical arc for an empire is how this resistance leads to change anyway. In the context of my studies, each arc has been different: Qing, Ottoman, German, USSR, and British empires all found ways to undo themselves while attempting to retain consolidated power.
For many, it would appear obvious that imperial overreach would lead to collapse in the case of the U.S.- but I think a lot of people are mistaking what they think they want to see vs what could actually occur. The U.S. Empire is remarkably resilient. Thus, change should probably be measured on smaller scales.