Apparently the health-nazi nanny-state jackbooted fascist goose-stepping seig-heiling taliban scum aren't satisfied with enslaving humans in their new Reich, so their going after animals as well.
I won't say any of it's a conscious conspiracy, but some of the creep to the Left comes from activists getting bright ideas based on work done in other areas. What I mean:
The government gets the right to monitor a dog's weight, and to remove dogs if they are "in trouble".
The next thing you know, Child Welfare activists are "concerned" about your kids, they claim that "We treat our dogs better!!" and you've suddenly lost custody.
The attack on our rights is multi-pronged. Perhaps the attacks are not coordinated, but they do feed off each other.
In just the same way, same-sex marriage is used by some to justify polygamy, and lowering the age of consent.