world-inflation has happened before, without us
It's not like there wasn't a new, unusual, and external cause, that affected us and the world, as far as inflation was concerned, this time. It happened that way because of a monumental event in world history, and due to mismanagement by both parties. The past inflationary problems before it became a global economy were for Hungary and Germany following WWII,
because they were on the losing side, and that affected their economy after the war. Then there was the past inflationary problems of Venezuela and Argentina due to political instability and mismanagement by dictators and the like.
There has never been a serious problem with world inflation that did not affect the US. Even after WWII we had a brief problem with inflation at a pretty darn serious 18% during 1946. Then we entered a boom period that destroyed inflationary problems with great speed. Quit throwing out false gobbled gook, because you think it's true, when you have nothing to back it up.