I imagine there are a lot of impotent people on here. I'm not as bad as some but if I masturbate too much I'll struggle to get and keep an erection, but that sorts itself out within a few days or a week at the most. There are some people on here who can't get perform with women, or escalation has led to them finding women insufficient to become aroused.
True impotence means you can't get an erection at all no matter what. It means literally 0% erections even with physical stimulation. Most men with ED aren't impotent.