It's not as easy as that. First of all, you might be discriminated against by the HR jockstrap, whereas the people you'd be actually working with wouldn't be suffering from such delusions. You'll likely never hear from HR again after accepting the job.

Second of all, it's not like you "can vote with your feet". If you're being discriminated against, it's not going to be one place. It's endemic - it happens, for better or worse, "everywhere", especially if you have many characteristics which are targeted, like many people do.

Third of all, not having cameras on removes to a large extent the worry that you _have_ been discriminated against, which is a large part of the stress for a person who does get discriminated against with some frequency.