I don't know what you mean by "extremist" here, but the fact is, you still need people like that, don't you? You yourself know that the existence of cryptocurrency is still in its baby age. A great effort is needed to make cryptocurrency more visible to the public and more appealing to adopt. And when that happens, I'm sure you'll feel happy even if you don't say it to anyone in this forum. And did you know? The contribution of extremists increases the chances of Bitcoin's existence being known to the public in a wider scope.
An extremist is a bigot, I am not one of them, they could make unnecessary noise which is not mature. Mind you, it's not the work of extremists that got crypto to this level, it's the work of the founder of Bitcoin and the benefits attributed to blockchain technology (sense and creativity). When a problem is solved through a means, people will buy it, it's not by pitching crypto with fiat, it's about smartness in how you deliver it to the consumers.
And for the record, these extremists are only making noise online, most of them have never attracted anyone to crypto, they only like to argue, while the crypto developers, business owners, exchanges and many more created tempting avenues for people to appreciate and adopt crypto the more. Can you see the difference? The attractiveness of crypto and the business models around it are what you have mistaken for extremists' lousiness. It's wisdom and the attractiveness of crypto that is helping the adoption since it has a lot to offer people not the childishness of some extremists that will never contribute something meaningful to the adoption but ti make noise.
It's okay to compare it with anything, as it can produce discussion material and generate new ideas from different perspectives. Bitcoin extremists are people who are no longer ashamed to say "I support Bitcoin" in public. And that is a level of confidence that you may not have. You admit that the most transactions you make every day are using cryptocurrency. That means you are actually an extremist, maybe even more so than others. But you choose to be neutral and become a person who is not an extremist.
What I see above is not a comparison, it's siding one against the other, of which in true practice, everybody knows that we are benefiting from both and they have their pros and cons. Also, it's not about being ashamed, I always tell people to adopt it and will continue to do so. I do everything with crypto now, and like I stated earlier, 100% of my cross-border transactions are crypto aside from trading and holding it.
This means that I love crypto so much and depend on it daily, but will still not be an extremist of it. I know how the two (fiat and crypto) benefit me and I do my best to use them where they could serve me better than each other, not pitching them against each other.
My Bitcoin store is getting bigger each day and I'm planning how to make a business around it, this is smartness.