It’s easy to just say it’s Bush’s fault, in reality there were LOTS of factors and people to blame, too many to just say Bush caused it. There’s the subprime mortgage crisis, the Federal Reserve (works independent from Bush), politicians in Congress (both D and R), Bill Clinton, and Bush’s inexperienced actions toward Wall street and Banks.
I am not taking blame away from Bush, I’m clarifying that it’s not just him.
Here’s now the second left wing source that disagrees with you.
https://www.nytimes.com/2008/09/20/business/worldbusiness/20iht-prexy.4.16321064.html
And here’s responses to the popular “waaah Bush!” arguments. (Actually read this before casting it aside please.)
https://www.aei.org/pethokoukis/obama-didnt-end-the-great-recession-that-bush-didnt-cause/