I understand and sympathize with the desire to directly equate every current social issue no matter how small with a social issue from the past as part of a larger "chain of social progress" because I think it originates with the desire to correct past injustices and treat everyone with respect and decency.

I disagree that this is a useful or accurate way to engage in discussion about an entirely different and specific subject in an entirely different context. The only way they are related is with this "chain of social progress" framework, and even within that framework, they are not the same issue.

I perceive it to be a dismissive approach which shuts down conversation, and I think it's clear when viewed plainly in the opposite direction: "If you have concerns with any of the political messaging in children's shows, you would not allow a person of a different race into your swimming pool", or in a slightly different way, "If you have concerns about this you are explicitly the "bad guy"".