> Do we imagine those unbanked people being likely to have bitcoin wallets?
Yes, mobile phones far outnumber bank accounts in much of the developing world.
Also unbanked people exist in the developed countries. Ex convicts, immigrants and homeless for example.
> That a problem, for sure, but in exchange consumers have no recourse if they legitimately need to chargeback a vendor. This is an anti-consumer feature of bitcoin.
Yes it's one of the drawbacks.
You could argue that it's easier to have recourse against a business than against an individual.
> you'll need an exchange to your currency of choice, at which point governments have all the ability in the world to effectively freeze your assets.
You're imagining a world-wide all powerful and all knowing government which can freeze your funds. There are exchanges all over the world and you can even sell your coins for physical cash. Also you need to be able to trace all coins and then try to freeze them, which isn't practical if you use Monero or a good mixing service.
That's assuming you actually sell your coins for fiat instead of buying things or services instead. Or if you just hold the coins.
This is very different from holding the actual wallet and being able to freeze it at any time.
> yet the number of websites that are offering bitcoin payments is shrinking
Do you have any source that the number of porn websites are accepting cryptocurrencies less?
Cause that doesn't seem to be the case at all. Pornhub for example has partnered with other cryptocurrencies (bad move IMO but still). Playboy was working on it but apparently got screwed by their contractor. There are other smaller sites that have begun accepting cryptocurrencies recently.
This is also not a technical argument against cryptocurrencies. With time adoption will increase since the technology is here.