I think it's even simpler than that. A lot of the people conflating anti-Israel sentiment with anti Jewish sentiment are ethno nationalists. On the Israeli side, those would be Jewish nationalists; but here in the US, the sentiment is disproportionately coming from Christian nationalists. Incidentally, these people also tend to be the same people who conflate anti-current-governing-coalition-and-policy-of-Isreal sentiment with anti Israel sentiment more generally, because that conflation is part of fascist ideology, and ethno nationalism tends to be a fascist ideology.
The reason we see pro-Zionist media ferment anti semitism is simply that the Zionist movement is ideologically aligned with most anti-semetic movements.
Renters are not that captive of customers. Once it becomes a common amenity, renters will start considering it as part of the rent when deciding where to live. Just like they do with utilities, garbage collection, and other amenities that landlords can charge for outside of base rent.