So I am thinking of writing an AH story, and I want it to be set in 1900 (ish) with a Europe dominated by a communist France, but not Bolshevik Leninist Stalinist, more mild and little less authoritarian. Also I want a very strong Anglo-American alliance (not too hard I assume considering the state Europe is in). So yeah, how plausible is this, and what events do you think could lead up to this?
1)You should take an anarcho-syndicalist France, more influence by both Commune and by social thinkers (others that Proudhon, too linked with Napoleon III). Maybe you could take some inspiration from OTL Amiens' Charte.
How to reach this? Probably using one of the economical crisis, or even (but imagination is required) using a collusion between 1907 events and economical crisis.
2)Anglo-American alliance? If France didn't turn colonialist (increasing the odds of regular economical crisises in the country), well maybe UK would have to search someone else to counterbalance German rise.
After all, if they managed to allied themselves to France OTL, an alliance with USA wouldn't be that absurd.
Except : USA were very very very isolationnists. I mean, a lot. So you'll need an international crsis involving both Germany and USA with opposing interest regarding them.