1. Are you choosing to be in denial and stubborn on purpose???? Koby was never serving as a guide to any of the families, stop making up headcanon. Dude was stationed at Marineford and then got sent to deal with fodder thugs, and you believe this is a special priviledge that nobody has. By that logic Rear Admiral Hina is next level, who was assigned with the duty to guide King Kobra all the way from Alabasta to the New World. lol.
2. What are you even saying???? Who else is meant to be on Koby's ship??? And what does New World or Paradise have anything to do with where a Marine can go??? What in the blue hell are you rambling about??? Just creating up random feats?? Now Koby can't go around in his own ship while being near Marine HQ, and he can only do that because he's gotten special privilidge... what in the blue fuck?? lmao. I will repeat for one last time again. Marine HQ, the home of the marines, the base of the marines, is located in the New World.
Let me reverse this on you, I saw Marine HQ captain Hina lead 4 ships when being sent to arrest Crocodile. I have yet to see Coby lead any ship other ship outside of his own, why?
3. It's called having a deterent??? You do realize Marine HQ Captain isn't some chump change position??? It holds some power??? Coby was the junior officer, Yamakiji was the head honcho. Junior officer also had the chip in case anything happened to the leading commander.... Marines are a military.... this is basic military stuff... Command chips can be taken away and given, you know that yes??
4. The story has never stated such things.
5. Cute, and as I stated we have next to 0 info on the abilities of the big VAs, hence pointless point.
6. He was never stated to be the reason for Blackbeard's uprising, stop this.