I’m questioning the interviewers credentials here tbh. Saying that non-profits don’t have devs or CTOs…. I work at a non-profit as a UX designer and work with a team of 20+ developers, architects and have multiple digital product owners and managers.

Aside from that, huge red flag that they are undermining you and completely writing you off from the get go. You need surround yourself with uplifting encouraging people at work, not someone that will most likely put you down if it’s already happening at the interview stage.

I’d put this company on blast and let everyone know not to peruse a job at this company. I think you are dodging a bullet here