Yes, but they accept federal and state money, just like when the UC's accepted federal money and decided to submit on the issue of military recruiters on campus, because getting federal funds is voluntary and to the nearly arbitrary discretion of the executive branch.

However, I do think that there should be more mechanism than the purse to persuade institutions to make material accessible to disabled populations -- but for major institutions only, since I'm not sure smaller organizations can cope with the burden. Perhaps organizations above some revenue?