I feel like most people encouraging hope on this thread are doing so because they're on this site and don't want to see a fellow sasu member give up on life, whether they are right or wrong. The fact of the matter is sexual attraction is still an important fact in non asexual relationships, and most women may not be attracted to such conditions so it could be a deal breaker.
Overall, it is up to you whether or not you want to try to find the exception to the rule. Maybe you'll get lucky with demisexuals.
Also, the women commenting don't have to be concerned with being born with a micropenis so they underestimate how terrible it is, thus they tend not to think it is a big deal. It really fucking sucks.
They are right though. You "could" find someone, just like I could walk out of the house and find a million dollars on the ground. Nearly anything is possible, but that doesn't mean the likelihood is high, or even probable. You do have to keep your expectations realistic instead of falling into the hope trope and ending up even more disappointed.