Agreed.
Here's a way to use crypto to buy from pretty much any major online merchant anonymously without them tracking your user data:
https://paywithmoon.com/merchants
Its a card that acts as an intermediary for crypto.
It let's you buy from these merchants without giving away your private data or buying habits.
This is a valuable use for crypto for many people. This is a site that let's them use their crypto basically anywhere without getting spied on.
This fundamentally disproves his first core statments about crypto not having a use case and not being usable at most merchants.
Basically, he immediately reveals he doesn't know what he's talking about.