And the same is wth your theories about Boa. If she go back to AL once again after this with Luffy than OK. This is simple so you don't have to repeat this over and over again and put the revolutionaries in here. We don't no nothing about them and you assume they will take the protection of AL. I could say hey Jinbei helped Luffy so maybe Dragon will take care after WBs dead of FI.
But like I said we don't know nothing about the revolutionaries. If they really wanted to smash the WG and marines they could do it know with an alliance with WB. And Dragon should know that Luffy is there as well to save Ace. So where is he?
And you're problem is that you ignore when I use words like could and probably. Secondly, Iva is right at the war and as far as we know Robin is still with the revos unless she got dropped at Saboady (also Iva may want to inform Dragon about Kuma) .
So as I said it isn't like there's no connections to Dragon and I just pulled it out of the air. Third although I think it's a slim chance we don't know Dragon will appear at this war or not but just because Dragon didn't ally with WB doesn't change the fact that he obviously wants to crush the WG. And Dragon could protect FI but that would lower the amount of chaos in that arc and that is WB pirate territory so they should defend it.