Actually, you seem to have a problem pivoting from calling people classist to, when called out for being wrong about that fact, complaining about people being on a “soap box” defending animal exploitation.
The underlying problem here is exploitation. The animal ag industry is known to be one of the most exploitative industries, and it is no surprise that they have a more significant problem with child exploitation, given what they are willing to do to animals. Child labor exploitation and animal exploitation are inextricably linked. My proposal would be to address both problems, instead of whatever band-aid solutions your cognitive dissonance may lead you to.