Even a qualified appeal to the majority isn't a very good argument. There are many scenarios where the majority of events is caused by a minority of individuals.
For instance, 20% of developers could be responsible for 80% of all software, or 80% of the most used software, or the software that generates 80% of GDP, etc.
He still wants all public-facing identities tied to a real identity he can track and analyze. That encourages even greater abandon of one's privacy, as you worry less about tying your real name to still-monetizable private thoughts.
Remember when influential people and institutions encouraged (or outright required) the use of a platform made by the man who said the age of privacy is over?
For instance, 20% of developers could be responsible for 80% of all software, or 80% of the most used software, or the software that generates 80% of GDP, etc.