What genetics? If you have acne you should get treatment with antibiotics at least. It"s a bacterium. Here in Romania we even have an autovaccine of our national institute against it. I guess that in the US if the oral antibiotics don"t work, then you get antibiotic injections. And all these in the same time with body creams I believe. I don"t know, I am no dermatologist. Only what I heard or read.
Current people have no fault, this all developed many years ago. We can still be all very clean, but it"s impossible to kill all what was developed in centuries. Fucking bacteriums. Imagine the conditions long time ago.
I know beautiful people who are sad being affected about this. The medicine should give more importance. So many wrong treatments.