I think the thing smartass is confusing himself with is the belief that condom usage is anywhere near 100% effective in preventing HIV. The best estimates are condoms fail 5-10% of the times they are used, and that assumes that they are being put on correctly.
I have a buddy who converted from being fucked with a rubber. His versatile fuck buddy apparently had a box of out of date condoms that broke way too easily. His buddy had taken a load sometime previously with one of these bad condoms and not noticed the break. Sometime later he fucked my friend, and neither of them noticed the break. It turned out he was at the most infectious point after recently converting and passed it along. This all came to light because my friend had such a powerful fuck flu that they caught his conversion as it was happening. He was feeling very sick, but not testing Poz yet.
PrEP offers a comparable level of protection to a condom, and you are COMPLETELY in control of it. You don't have to depend upon another guy putting on the rubber correctly and making sure it doesn't break.