I do feel there is a problem in this thread, and with how the Original Poster approaches the argument - Monuments.
Like okay, they suck. They are ahistorical weird buildings, that provide a weird selection of small bonuses, and are somehow built possible to be built in every single state, which makes them feel very not special at all. It's easily the worst feature of Power Blocs.
Do they ruin the game by existing and need to be removed? Not really... though maybe making some change to them would be nice, like maybe moving "Power Bloc embassy" from a diplomatic pact for leverage, into actually building one in their capital, using some of the Monument mechanics. While I feel few would really mind, if there was a major change to Monuments, or they just vanished in a patch, they also can stay in the game and whatever, they don't have much of an impact on anything.
But in this thread they are used quite heavily as the problem and the argument. You can't really have an argument, that Power Blocs are a good feature, or something that just needs some tweaks, without hearing "so do you think Monuments make sense?", and since they obviously don't, then the entire argument gets dismissed.
Like I can't really say I agree with many points by the Original Poster. To me it seems like they attribute a lot of completely unrelated issues to this one feature they don't like, and largely don't care about the effect on the game it would have - like there's no reason to remove naming of your Power Bloc, and yet they do list it as a necessary change.
But this "so you like octopus in a hat?" line of thinking really gets in the way of actually any meaningful argument. Power Blocs will be here to stay - they are a DLC feature that people paid for, you can't just remove it, even if it turns out not to be good, and Paradox just won't do it. Them receiving updates and changes and reworks is realistic though, but dismissing arguments by attacking the single weakest point of the DLC, which kinda sucks and barely anyone likes, is counterproductive.