It wasnt the oil or gas. Europe was perfectly capable of substituting both.

They got away with it because they built up their industrial base while the west let its industrial base wither. It's only starting to dawn on our leaders (3+ years in) now that dropping the ball on stuff like steel, mortar and missile production actually loses wars and that it takes years to undo those mistakes.

The west's Achilles heel was always profit driven capitalism + a superiority complex. All China had to do was to systematically undercut the west on industrial inputs while its superiority complex held firm and the west took care of hollowing out its own economic and military potential.

Even today when the US produces ~50/year patriots for the entire west and Ukraine needs ~400-500/year to stay afloat some people are still telling fairy tales about how a lack of "will" was the only thing standing between putin and domination. The superiority complex hasnt even died yet.