It's been a few days, with a lot of misunderstanding in replies. That's on me for not communicating my point effectively, so let me expand on and clarify.
Suppose you encounter "HTML isn't a real programming language" as an example of gatekeeping people out of tech. It's a real and really awful canard that techbros use, even now.
Very roughly, you can respond in one of two ways:
• Expand the definition of "programming language"
• Challenge the idea that programming is necessary to be in tech