1. Thats Luffy disrespecting himself by letting Ussop join again. I never said Zoro won't leave under no circumstances. What if Luffy turned out to be a woman killer who raped people. Zoro would leave. Basically you brought up a circumstance. Also that chapter was literally called pride. Just like i said his pride wouldn't let him go against his word just like he wouldn't follow a captain that gets disrespected all the time. Even Nami takes advantage of him when he owed her something in WP. Zoro a very honorable person. None of this makes the point that Luffy blackmailed him.
2. Zoro already said he didn't know who was stronger in WP. So stop the cap.
3. Zoro never said that post the panel
I literally proved Zoro can leave the crew whenever he wants. He didn't talk about any word he gave to Luffy and he didn't say he would forget his word because there's no such a thing even mentioned in the series that's only your fanfiction and you can't prove this.
And comparing Usopp not apologizing from Luffy to killing women and raping people is stupid. These are not even remotely close. Interesting that no one other than Zoro make that an issue in the crew only Zoro did, so if that was an incredibly bad crime then surely anyone other than Zoro would mention it as well but just like Luffy everyone forget that only Sanji agreed with Zoro after Zoro bring that up and said Usopp should apologize. So this was Zoro's deal to stay in the crew, otherwise as he said he was going to leave, while others were still going to stay, and there's no such a thing as forgetting his word to Luffy as well because there's none. So don't compare this thing to vile crimes like killing women and rape.
VIZ translation, chapter 634,
*Zoro after seeing Luffy one-shots 50.000 men, Zoro: ''He'd better be able to do that much or I'll have to take over as captain''
Again there's no such a thing as giving his word to Luffy, he simply says Luffy is captain because Luffy is stronger.