Oh come on - this is computer game AH. Why on earth would all these countries throw in with France over the Fashoda? Do they just sit down and say "maybe if we all team up we can beat the UK, so let's do it". That's not how life works. That's not even how Vic 2 works. You'd probably even struggle on Civ 5 to get an alliance like that together.
France: Let's forget recent history and DW on UK, Germany.
Germany: Why would we do that?
France: Let's DW on UK, Russia.
Russia: Why would we do that?
France: Let's DW on UK, Ottomans.
Ottomans: Why would we do that?
Hilarious