1. Is just an excuse for not liking the Nika PU imo. I don’t think Oda defied any logic pertaining to mythical zoans by creating his own in-verse mythical being. In the first place mythical zoans are just that, ‘mythical’. They are beings that are born outta people’s imagination, and don’t exist on the plane of reality in the first place. With Mythical Zoans, Oda isn’t really confined to a fixed set of options like he is with the Logia (which are naturally occurring elements), regular zoans (animals that exist in reality), or even the Paramecia.
2. I can understand.
One of the strongest appeals of Luffy as a character was that his rubber fruit made him an underdog against all the major antagonists he’s faced in the series so far, which made him very appealing as an MC but with this Nika development it feels like that appeal is gone so I get why folks might be disappointed in it but coz Nika looks overpowered now, it doesn’t necessarily mean that underdog theme cannot continue going forward into his remaining fights in the series. Blackbeard for instance is even more ridiculous than Luffy just as he is atm & if the theme of him acquiring the strongest DFs in each category continues, chances are that he acquires a zoan fruit even more overpowered than Nika. Then there is potentially IM for instance, who is quite literally depicted as god in the OP verse.
Lastly, when I first read the spoilers, one of my immediate criticisms of this whole Nika ting was that Oda is literally contradicting what he said in SBS when he said he wanted to create a weak MC with a ridiculous fruit & let’s be honest, Oda is not really the most consistent with his writing and statements, which, is actually one of my biggest criticisms of his writing but on reading the chapter, through those panels I got the feeling that Nika is exactly the kinda ridiculous MC that Oda has wanted to draw all along as such it’s still consistent with the ‘ridiculous theme’ Oda always had in mind for Luffy. That said, fact that Nika is so overpowered contradicts Oda’s words about him not wanting to write an overpowered MC, there’s no denying that. However, at this point in the series, given Luffy’s current opponent & the kinda challenges that still await him in the future, it isn’t really that much of a game breaker for me personally.
3. Not really. Right now, it’s literally the WG vs Plot lol. They literally even stated that they’ve tried to acquire the gomu gomu for 800 years but shit has been ghosting them 😂. Moreover, you say the Gorosei are incompetent bcoz they can’t truly handle a problem if they don’t kno what it is but I don’t think that is fair criticism. I mean it’s not like this mystery surrounding the gomu gomu can simply be solved by looking it up or sumin. Right now, they are well aware of how dangerous that ability potentially is & it’s precisely bcoz of that that they are willing to risk war with Kaido as opposed to the alternative. Hell they even sacrificed one of their best agents & quite literally succeeded in killing Luffy but plot was like ‘fck that!’

. You can criticize the Gorosei for not actively going after Luffy with the intention of ending him all this time & also not taking him seriously enough but not the fact that they kno so little about the gomu gomu fruit imo.
Fact that they are wary of it doesn’t necessarily mean they know everything there is to kno about that fruit. You can be wary of something without knowing what exactly it is.
4. The Rubber form we’ve seen up till this point pre-transformation is quite literally his base though? You seem to be assuming that Luffy’s current Nika transformation is his base zoan transformation. Luffy’s fruit didn’t just suddenly become a zoan, it’s always been a zoan. Moreover, I get the feeling that u’re using what we kno about animal zoan type transformations to rationalize Nika when it’s fundamentally different from them. Luffy’s transformation should be more akin to Sengoku’s than it is Kaido or Marco for example & we’ve only really seen 2 forms of Segoku, which are his base & his Buddha form. Nika is consistent with this. Also, with regards to why only the Nika fruit has to be awakened to allow the user to transform, that could be explained by the geneolgy of the gomu gomu fruit. Hell it might even be sumin as simple as the human type mythical zoans requiring awakenings to enable them to transform.
All that said if there is one ting I personally really dislike about this Nika fruit awakening, it’s that it doesn’t really help explain the concept of awakening and it honestly feels like Oda just randomly gives characters awakening without there being any properly established rules with regards to how to attain it. I mean based off Luffy’s case u have to die once to awaken your fruit which doesn’t make any sense. Plus, it’s very unlikely that all the other awakened users in the series had to die to do so.
5. Completely agree with the premise of this. With all this Joyboy nonsense & him seemingly being unable to die etc. it feels like Luffy is destined to be the PK so yh it does appear to be a fool’s errand for the others.
Btw, FYI I’m very far from what you’d consider an Oda wanker/defender and most people that have seen me talk on Oda in general should should know this. There’s parts of his writing style that I absolutely despise but with regards to this Nika transformation in particular, I think it’s pretty creative & creativity is coincidentally one of the very few
or maybe even the only aspect aspects of Oda’s writing that I actually rate
