China is going away.
Iran has nothing but oil, money, and crazy people.
Russia has a whole bunch but are decades behind the US in living standards.
so, we can outlast any of them.
Besides we have millions of potential Newcomers.
At least we got that going for us.
“so, we can outlast any of them.”
Until they realize that they are losing and the nukes fly. Like Long John Silver said in Treasure Island, “Them that die will be the lucky ones”.