Here's the problem with pedophilia and why it has not been nor will it ever be accepted like homosexuality.
1. Being a pedophile leads to the possibility of acting out on it. That leads to the second point.
2. Acting out on it involves committing sexual conduct on a child. Unlike an adult, a child is not mentally, physically, or biologically supposed to be doing things like this. This is why a child cannot consent to such a thing. They don't understand what they're doing on the same level the offender does. In most cases, they are reluctant to agree to such an act and do so only because they were always taught to see adults as authoritative figures. In other cases, they're simply forced against their own will to perform the act, which leads to the third problem.
3. If a pedophile cannot abstain from sex, he or she (they're not as common but they are out there) will do what is necessary to get sexual gratification. Rape is sadly a common crime, but it is even more tragic when it happens to children. As adults, we see each other on the same level and have a better chance of avoiding such a confrontation. As kids, the adults are the authoritative figures. Kids are supposed to trust adults. Kids are supposed to do what they're told when an adult tells them to do something. This is how a child is socially wired. At home, they listen to their parents or older siblings. At school, they are told listen to their teachers. Wherever a child is in public, there is somebody they're supposed to be listening to or someone they're supposed to look up to. Having an adult become a sexual predator can completely destroy that sense of trust, which leads to the next thing.
4. Even if a kid is okay with such an act, that doesn't man they'll always be okay with it. Such a relation is known to fuck people up when they get older. Again, all of this happens only if the pedophile cannot restrain their sexual desires. Also, what is the alternative? If a grown adult is attracted only to young children and they HAVE to have some kind of sexual relation, what alternative is there that will not lead to a child being violated? There is none. Their only other option is to seek medical help. That means exposing their fantasies. This is why pedophilia will never be accepted as a norm into society. Even if the pedophile makes valiant efforts to not act on on their fantasies, the possibility always exists. That's why they are feared and it's why they are shunned even if they had not committed any sexual crimes.