Same question for HTML. In my mind, HTML is a markup language. Maybe I am unaware of more advanced features that fall into the programming language category.
For me HTML is a declarative programming language with a very small feature set. Many people disagree with me and I’m ok with that.
The argument of “it’s a mark up language” tends to not hold weight for me as when I ask people why they say “because it’s in the name” - which, for me, misses that HTML is considerably more developed now than when it was named and should be measured on the current feature set.
It’s not a hill I’d want to die on though so really, it doesn’t matter.
HTML isn't turing complete, which, along with other limits make it very limited as a programming language, but it does support programming behavior to some extent without resort to another language, so it certainly makes sense in that regard to call it a programming language.
Yes, SQL, HTML, CSS (not on this list apparently), XML, JSON, YAML and a couple others are all declarative 'programming' languages. I don't know if there's a formal definition of what is and isn't a programming language tbh, but either way I wouldn't consider them lesser for whichever reason.
That said, I think SQL, CSS and maybe HTML are the only ones that are a league of their own, that is, you could get a job as a pure CSS or SQL programmer.
