Living and working in Southern California at the hospital where I worked for decades, the ones where I worked registry, and the one where I was "rare per diem" (Only one weekend shift a month was required) staff has been ethnically and racially diverse. Now nursing is diverse regarding gender too as about half the new grads are men.
At the per diem job a nurse answered a colleague's patient's call light and told the assigned nurse, "Your patient asked for "My nurse". I asked him who his nurse is and he said, "The White one." We six RNs and one secretary only then realized only one staff member on the unit, including two physicians, was White. Some days all but one would be white and the "not White" one was the only nurse born in the USA.
Once I was the only one not in her or his twenties. Most of our young single nurses belonged to the Sierra Club and hiked together when they had the day off. They told me, "You are not grumpy like some of the older nurses. I think they are jealous of our youth and fitness." I never noticed this, but they did. These young attractive, slender nurses were of different races and from different countries, but had their nursing education at one of three local schools of nursing.
Unfortunately that well staffed hospital with supportive management was sold to a for profit chain. Those who had only worked there had a reality shock. Most left for other jobs. (I quit before the new corporation took over)
One hospital where I worked registry had a majority of RN staff from the Philippines. It is due to recruitment from there in the early 1980s. They also recommend to their school mates and younger alumni their hospital. In spite of the CEO and BOD not being supportive of safe staffing and sufficient supplies and working equipment they insist our state hospital regulations and Nursing Practice Act are followed so they provide the safe, effective, competent care with compassion all patients deserve.
I don't really have advice. Believe me I've experienced and observed racism, but not from fellow nurses. Only once from a surgeon, but not against me. His answer when called to report a patient had less than 30cc urine output while on IVs he said, "Fat Blacks don't pee like normal people." Because he didn't seem to have truly listened I called our Medical Director, told him exactly what was said, and got an order for Lasix. He told me to document in the chart a direct quote. He came in early, asked me to fill out an incident report and he signed it. The medical director thanked my because he had been told about this surgeon before, but no one would document it. That surgeon apologized to our staff at a meeting and told us he apologized to OR and PACU staff too.