The US was allowed a crash at least. As for how much we will pay for low interest rates later, I'm sure it will be something bad in the next crash.

China has kept pumping up its bubble unreasonably so since the mid-2000s. It has a third-world problem compared to the USA's first-world one.

This may be an unpopular opinion, but in a low-growth first world - which we are probably living in, now, interest rates have to be low.

not an economist, but during periods of wage-inflation (i.e. now or soon), won't interest rates need to increase to prevent the economy from "overheating"?

US will see high growth because the money that was loaned to emerging markets are coming back.

US recorded 4% gdp growth in Q2.

A significant portion of Q2 GDP was China pulling forward commodities purchases prior to tariffs going into effect.