There are so many things he consider to be just given, but they all come from somewhere and have to be payed as well.
And most of that money comes from taxes.
Then, if it would really happen that taxes are avoided through bitcoin in a bigger number, that would be quickly the end of the line for bitcoin.
The governments would suddenly find a way to cooperate and stop the possibility to exchange bitcoin into fiat and back anywhere.
No, I do not see bitcoin to become a tax killer.
There are some niches where dodging taxes might work out at a first glance, seemingly a bright idea, for example remote work in the IT industry. But employees will soon have to recognize that labour relations always are unballanced and employer will "price it in" inciting a rat's race to the bottom and even below the former bottom. The bottom will drop out. Labour mobility increases indefinitely and there will always exist 1 human beeing on mars, saturn or earth that seems willing to undercut your offer.
People need time to understand like that Uber driver who's run into personal bancrupty.