whirl_without_motion

Yes, The National Register of Health Service Psychologists also has a "Find a Psychologist" tool!

It depends - are you using race to rule out people because you don't like them, or are you looking for someone of a similar background/cultural experience because you think they will understand it on a level that others will not?

How far back in time should you go on a resume or CV? At what point does the (career-related) experience in college not matter anymore?

That is not an unreasonable thing to look for in a therapist. It's quite common for requests for a therapist with a similar background, whether it's gender, religion, race, sexual orientation, etc. If you are in an area where your background is underrepresented, I would consider looking at other areas (if you are in the US, that is my point of reference). In the US, psychologists may be part of an inter-state system called PSYPACT where they are provisionally licensed to see patients in other states. So if you were in a rural area in Nevada, for example, you could be seen (via telehealth, video or phone) by a psychologist in Chicago.