Bitcoin had design goals in mind to avoid certain downsides of centralized currencies. The cryptocurrency space however lives inside the broader economy and questions about what money is and the regulations around it don't go away just because a specific cryptocurrency thought about some of these aspects in it's design. Even if bitcoin were to solve everyone's problems as some maximalists would claim how do we even implement this? Considering much of the world doesn't have holdings in bitcoin what are we to do? Similarly what do we do about people who don't have the infrastructure to run full nodes? What about dealing with interference with using the cryptocurrency imposed by external actors?
There's good reasons why people discuss these ideas, bitcoin, much like anything else is just part of the direction things can go in and it doesn't exist in isolation from the rest of the world.
Assuming bitcoin fixes this like the maximalists claim, the way forward is to continue educating people on bitcoin and more importantly what’s wrong with the current monetary system. Way too many people buy into the narrative of bitcoin being harmful for the environment and being an outdated technology (“Blockchain, not bitcoin!”).
Much of the world doesn’t own bitcoin but as long as you have a mobile phone and an internet connection, there’s a way to buy some. The technology’s been working for 12 years now and it can scale just fine, no need to tamper with anything. People don’t need to run full nodes, it’s already decentralized enough. I have one running off a raspberry pi and a 1TB hard drive, but it’s just because I want to and not because I think the additional node is needed for the network. Bitcoin is resilient against external actors by design, maximum decentralization and security. Remember when China finally cracked down on all bitcoin mining in May? The hashrate has recovered by now and China lost almost all of its 50% foothold on global bitcoin mining. The rest of the world’s bitcoin miners thanks China for its contribution.
It seems to me like Bitcoin is dismissed too easily by people who haven’t done enough unbiased research on it. For me, it’s not so much that Bitcoin is such an awesome invention and everyone should worship it like a cult. My question is what happens after fiat currencies collapse? Every single government backed currency has collapsed from hyperinflation in the past, and there’s still a good number of countries with hyper inflating currencies today. Historically, after chaos and war, some people’s debts are flushed away at the expense of everyone else and a new currency is issued by the affected jurisdiction. Do we just want to repeat that cycle when the USD collapses? I think that a free market currency that cannot be controlled by any organization (including governments) deserves more limelight.
There's good reasons why people discuss these ideas, bitcoin, much like anything else is just part of the direction things can go in and it doesn't exist in isolation from the rest of the world.