First, why is nobody talking about me being right? I predicted Luffy would "talk to the elephant and become it's friend" right when they found out Zou was an elephant. Now Luffy is hearing the voice of all things, which in this case is the elephant crying for help. I'm a genius and I deserve a medal. Nami would rather give me a medal than give AHK one. 
his head is being pressed against her chest, the hat is being folded as a result. also, that's a pretty bad comparison. she hugs usopp because she hasn't seen him for two years, and he happens to be the first straw hat she sees. nami didn't have to embrace luffy to give him his typical scolding. she could have simply pulled his ear to stretch to her, but she didn't. she grab his head and pressed it against her chest. she is holding him longer than she needs to after scolding him.
just accept that nami and luffy have the most intimate relationship in the crew.
There was nothing sexual about it. It's just the way Nami is. With that being said, I'm more than positive we'll see some good LuNa moments on their adventure to save Sanji. It's just grasping for air when saying this was sexual, when Nami has no problem with the guys on her crew seeing her nude for some money. I found Nami beating up Luffy as a better moment. Pretty cute how Robin just smiled back at the navigator beating up a guy trying to become pirate king.
^When a Sanji fan becomes insecure about Sanji's strength XD cry harder.
Your reasoning is so flawed. First, Jinbe isn't a part of the crew at the moment, not because Sanji needs to catch up, but because he's got to split from Big Mom first. It's got nothing to do with Sanji's strength. Not to mention the fact that if Jinbe were to join, it would change the trio anyway, because Jinbe would be just as strong, making it a quartet. Funny how you try to pretend that structure means anything to a crew that functions without structure most of the time.
Also, had you even bothered to read what I wrote, you would have noticed I said the only way I would foresee it happening was after Luffy beat Blackbeard, which by default, would make people like Jinbe, Zoro, and Sanji ablit ready to face Admiral level talent, considering Teach would be EOS. Hell, Luffy, Zoro, and Law all already stood in front of Fujitora and did reasonably well regardless.
Tl;dr your insecurity astounds me.
Marco will join Luffy's fleet, and nothing more. I know you said after Luffy beats Blackbeard. So what's the point of Marco joining his crew that far into the series? If there is one war remaining against Akainu or something, then Marco will just join his fleet, as letting him be known as a crew member to the pirate king after skipping all the adventures just sounds like a theory constructed from bias favoritism. I've made a theory for Tashigi joining, but it's highly unlikely and very bias.
Jinbei might not join at this point, because he's making the Sun Pirates again, and he needs to lead them. The last Sun Pirates fell apart due to broken leadership after Fisher Tiger's death. If he does join the crew, I'm all for it, as he's an awesome character who I was hoping just joined after Luffy asked the first time. Then I read on and he said "not yet." My only problem with it is that the monster trio has a huge spike in power coming up soon, and until that happens I'm 99% sure Jinbei won't officially join.
Either the Kaido vs Big Mom war happens, or Luffy loses to Big Mom while Nami and Chopper get Sanji off the island. If the latter, then they'll escape, and the crew will take a short break to grow stronger (learning advanced haki and devil fruit abilities). After the short break or tough war, Jinbei will probably go looking for Luffy with the defeat of Big Mom (with war), or training complete with Luffy (to challenge Big Mom again).
The pirate king's left hand man for over 700 chapters isn't just going to turn into Marco or Jinbei because there is a guy named AHK that doesn't like Sanji as much. In the end, Luffy will surpass emperor and fleet admiral level. Zoro will be equal with emperor level and above admiral level, and Sanji will be slightly below emperor level but slightly above admiral level. Marco and Jibei will be slightly below admiral level or on par.
Finally, of course Jinbei isn't joining because of Sanji. But obviously Jinbei isn't joining them right this second. The Straw Hats need to become at least 3x stronger to make Luffy pirate king. That goes for everyone in the crew. Once they get 2x stronger (100-200 chapters from now), that's when Jinbei will find Luffy and join his crew or fleet. Becoming his right foot man (because he right and left hands are taken already). Get it!?
Bad joke? Ok. 