If 4% of the population cannot partake of your services, then it is you who are being the asshole, not the 4% of people asking for an accommodation.

They were uploading these for free. The end result of the videos being taken down is that they are now even more inaccessible to that 4% than they were before.

Making things more accessible is a worthy goal, but the world is imperfect and making things better requires resources.