Then I don't get why they are trying to argue a distinction when there is none. Fanservice of minors is bad, no matter how "old" they're being portrayed as. The argument "I only watch Shounen because other anime is creepy" just really falls flat on its face when the entirety of fanservice in shounen is depicted with characters who are minors.
Anime, like any artform, will have shitty shows depicting things, that goes accross all genres. The majority of actual lolicon content comes from light novel adaptations that are pandering to Otaku. Anime needs to be, like movies, books, or actual TV shows, curated and looked at from show to show to find something that isn't with these issues. The internet makes this pretty easy.
Sometimes people recommend stuff too early, too, I remember Mother's Basement looking at this current season and praising Okaasan-Online. He obviously did that after Episode 1, and I watched it based on his recommendation. Imagine the embarassment upon watching episode 2 and 3. XD