A good deal of condoms aren't latex anymore due to widespread latex allergies. Those that are and aren't, it's not so much the pores, it's the manufacturing defects.
They're just not as tightly controlled as medical implants or other such things. They're a product, made on machines, in factories. Probably irradiated for sterility, of course, but they are not made like surgical mesh or film is, in cleanrooms with technicians monitoring every step and continually checking every batch with everything including laser scanning. It's why surgical mesh costs $100 for a tiny piece and a condom is $1.
Yes, some have very tiny perforations at times. Or they can break. They're far from perfect. They're better than nothing, but IMO, people should not be messing around unless they are both A) CERTIFIED clean with recent tests, and B) the woman is on the pill or using a secondary method as well, such as a sponge, with the condom.
I consider condoms to be...kind of like Russian roulette with a gun with 500 barrels. Yeah, the chances of a flaw are low. But if there is one, you won't know till it's too late, and someone gets something or becomes a parent.
