I don't see the similarity. If we go from blind people suffering from not having access to the audio transcription, to everybody suffering from not having access to either the audio or video (because all the videos were taken down), isn't that a lose-lose for everybody? In worker protection at least the workers win from having more safety.
That's the whole point of disability legislation across the world, including the ADA
If I were to build a new shopping centre, but decided not to put in wheelchair access, would you argue that everyone will suffer from not having access to the shops, and thus it's a lose-lose for everyone?
Are wheelchair ramps an example of cutting-edge / frontier technology in this metaphor? Shouldn't society catch up a little before announcing that a technology becomes a standard? Why shouldn't an advanced AI Siri guide any blind or deaf person through any institution, store, or software experience?
In this situation we are in fact saying that a large volume of user-submitted or professional porn should not be accessible because it might not be worth the money to transcribe. I don't think any stores are closing because a mall had to add wheelchair ramps. It's not like an inspiring technological undertaking.