I'll give you the benefit of the doubt and assume you're just wrong and not defending lolicon shit for other reasons.
1. Lolicons are pedophiles, they're attracted to children/1000 year old demons that look exactly like children. I would rather this gamergate 2 thing completely fall apart and let video games have retarded ugly women in it than associate with them.
2. Lolicons are pedophiles who sometimes branch out into real shit. Let them in your movement and there is a significant chance that one of them gets caught with CP. Congrats! Your movement is now a pedo movement.
3. Most people see lolicons as pedophiles. All of a sudden someone with some fucked up profile pic shows up and starts being "based" and at best the non-degenerates will leave and at worst they will start pointing and calling you a pedophile.
4. People will remember that lolicons are pedophiles. Good job, now people will bring up that you palled around with a group of pedophiles forever.
I hope that I've convinced you that you should always shun lolicons if you're simply mistaken, and I hope that you neck if you're defending your personal interest in lolicon.