I don't care what you prefer. But:

Dark mode just doesn't make sense for professionals.

Come on.

I use a dark, low contrast theme and work in a nearly unlit room with my monitors on nearly minimum brightness. It's comfortable and totally efficient. I understand wanting to switch to bright mode and use higher contrast when reading unfamiliar material, but code is not that. It is highly structured, repetitive (syntactically) and organized. So you can usually have a clear idea of what you're looking at without relying much on visual details.

you risk blinding yourself with the sudden flash to light

Only if your monitors are way, way too bright for your environment.