Fact is bitcoin adoption by state comes with regulations, which means a lose of privacy and freedom for bitcoin holder's due to centralized presence, well there is no way state will adopt bitcoin without regulations.
How? The state adopting Bitcoin and making regulations has had no impact on me. Neither is my spending limited, nor do they know where my coins are. Where is this negative impact of which you speak?
He's not relevant, but it does not mean that he is wrong. A lot of people sold Bitcoin for some shitcoin that was supposed to be the next big thing and it never materialized. Even if people are often wrong, sometimes they can be right.