I can kind of see where these people are coming from. Sexuality and fettishes are usually associated with each other, so I can imagine how these people might say "oh, ABDLs are misunderstood, the LGBTQ+ community is misunderstood. Therefore, since the LGBTQ+ community is fighting for rights, maybe we should too." So. I see the (flawed in like 3 huge spots) logic that they're using just with that one premise. Ofc, the longer they talk the worse it gets.