I feel it important to point out that rental laws in particular are provincial, not federal. Which is why Ontario and BC were the only provinces to have any kind of vacancy control, and which is why Ontario removed it 13 years after BC did. So unless that link includes provincial members of parliament as well, what you're showing me is a list of people who are benefiting from a system they don't have the authority to change.
Also: Please try not to explain ableism to someone who's experienced it. You're not going to route out discrimination by making it illegal. That's been done already. Changing the ownership structure of a property doesn't make that property more likely to accept a disabled tenant. Neither does making shelter a right (the TL; DR of that argument: "you have the right to a house, but not this house"). Now, if you want to talk about improving the rental or homeownership situation for everyone, then we can absolutely have that conversation. If you want to talk about abolishing homeownership entirely, we're going to have a different conversation.