SROs are undesirable from the perspective of most of the community: they are broadly viewed as overcrowded, low quality, unsightly, and associated with crime. Put simply, the people who would live in an SRO are, for the most part, people not desirable in the community.
The same goes for "Make it clearly legal to open your home to someone else who needs meals and daily help". Are you running an unlicensed nursing home or halfway house? We already have rampant Medicaid fraud, and then there's cases like: https://manhattanda.org/d-a-bragg-alon-riabichev-indicted-fo....