I had heard about the first part there... not the second part.

But uh yeah that sounds about right.

So basically, Smedley Butler's 'War is a Racket' was functionally written about Prescott Bush and people like him?

https://en.wikipedia.org/wiki/War_Is_a_Racket

Just because aol.com didn't exist in 1992 doesn't mean that it's impossible to do research into things that happened before 1992.

For one thing, there are archives of newspapers going back into the 1800s. For example, here's the NY Times from 1865, from the US Library of Congress. Or you can look at the NY Times' own archive for things like Bush Collapsing at a Japanese State Dinner

For another, books exist. People read books, and sometimes excerpts from those books are posted online. That's how you have Wikipedia entries for presidents who died before 1992. It's also how you get all kinds of articles like 14 Presidents who Cheated on their First Lady or Historic Presidential Affairs That Never Made it To the Tabloids or 9 US presidents who faced sex scandals before, during, or after their time in office.

Note that those articles do include George HW Bush, but they don't mention a Japanese person. Instead they talk about Jennifer Fitzgerald. Maybe you got the country wrong, because she was working with him while he was "Chief of US Liaison Office to the People’s Republic of China". So, she was a white, American woman but the affair would have been ongoing while he was in Asia.

To me, it seems more likely that you have a faulty memory, than that the world remembers lots of US presidents having lots of affairs, including George HW Bush, but that for some reason they've censored one particular affair of his.