Do we care what he has to say? Does he have any particular power or influence? Will next time be the time or is he just a popular face (that somehow can't otherwise compete)?
Though more generally the real answer to "what is the minimum wage?" is zero, this regardless of what your government says it actually is. If it is $15 I am going to want a lot for my money (no oldies, sick people, people of below average intelligence, disabled people, people caring for relatives that might not be able to give it their all at all hours...), and that robot is going to look a lot more attractive and a robot in India even more so.
We can look at employment rates among various demographics after rate hikes for a fun one (add in young people to the above list if you want a suggestion), and business migrations and workforces for another. Those plumping for increases here are also curious to look at -- why is the billionaire set often seen to plump for it
https://fortune.com/2019/04/11/bezos-amazon-minimum-wage/ ? Most of them work people to the bone, generally oppose unions and don't do healthcare if you live in a country where such a thing matters.
There are also places without it that might be worth looking at too. Germany for instance did not have any prior to 2015.
I quite agree that taking a job that leaves you in poverty is a bad plan -- it is why I laugh at game devs taking jobs in San Francisco that still have to have housemates or do work for those part time "gig economy" despite theoretically high remuneration, and those that work all hours to afford a lifestyle that is mostly still debt fuelled. Now eating vs not eating and what skills people have that might be worth the money is an interesting equation.