Astrophysics and premed?

I’m a senior applying to college. I am torn between astrophysics and medicine, so my current plan is to major in physics/astrophysics/astronomy (based on what’s offered) while being premed, then sophomore year-ish decide and focus more on the path I decide on. I like biology enough to go into medicine, but I dont like the small picture cell biology part enough to major in biology. Also, if I decide against med school, a bio degree is pretty unemployable. Is that an okay plan? I know physics is a hard major and the mcat is mostly biology, so I’m worried about my gpa and mcat if I choose medicine. Also, I’m worried I won’t be able to take the necessary classes for a good phd program if I choose astrophysics. I got a 5 on AP calc bc last year, and I’m in AP physics C mechanics right now and it’s going great. But, eventually these classes will stop being easy. Should I apply into an easier major?