You will learn a lot about research and community health if your BSN program was anything like mine. After the BSN you should be eligible to get your Public Health certification, then you will be able to pursue your career in community health. The most common places I have seen PHNs employed was through the county health dept. There are a number of programs funded by the government that nurses work with along with other departments such as disaster preparedness, communicable disease, and early childhood development to name a few. Your county health dept. should have information regarding these positions.
As far as research goes, I was under the impression that research is done most frequently by masters degree and doctorate nurses, although I could be way off. I can't help you with that one.
Finally, I have to comment on your current positon. Are you in critical care yet or still in tele? Even in tele you should always be using some critical thinking skills, and definitely more so in ICU. I'm sorry to hear that you feel like wiping poop is a waste of your brain, but without sounding catty, I'd like to say that sometimes it is just a part of our jobs as nurses. I have never seen an ICU that was fully staffed with nurses aides; those nurses did all the patient care and that was just accepted.
Anyway, hospital nursing is not for everyone, its just a shame that we are having so many people leave the bedside for other places

I do wish you luck and hope you find your niche.