It's not politics, it's discussing technical and economic tradeoffs to make the most secure credible neutral decentralized ledger possible.
There are some Bitcoin maximalists that think Satoshi was a god who figured everything out perfectly from inception. To me their insistance on never changing seems more religious than technical.
Arguing that an inflationary money is actually a better store of value than a deflationary one is not possible from an economic standpoint so they have to switch to other arguments like "well yea the devs continually made the economics better... But what if they make them worse!" Which isn't based in reality, it's all FUD.
There are no further plans to change the economics beyond this point and attempting to change them requires convincing thousands of people that it's a good idea, and it's not a 50% quorum, it's 90%+ because there are many clients written by many different teams that would all have to implement the change.