You are really squirming here.
1. You asked about Liberal Internationalism and I gave you the history of the theory. Failed by Wilson or not, it accurately describes Roosevelt's ideology for the course of WW2.
2. In the case of the US, Britain, or France during WW2:
it certainly does. I don't know why you are struggling so hard against this. Like, what's the point? A Liberal Democracy assisted like-minded governments against other ideologies hostile to it.
3. No decade of Liberalism is technically synonymous with any other decade of Liberals. Same is true of every single political ideology, but why are you splitting these hairs? Last time I checked, USA, France, and Britain were considered Liberal Democracies by historians even at the time. A big aspect of Fascism in Nazi Germany was a
hostile attitude toward Liberal Democracies which were seen as Jewish ploys. They were considered Liberal; I am not particularly interested in your personal definitions or understanding of these events.