Well, I imagine you’d expect it to tend to cause rents to go up and house prices to go down if it shifts supply from the rental market to the sales market, so it’s probably not good for renters. Generally-speaking, renters are poorer than homeowners.

searches

https://resimpli.com/blog/homeowners-vs-renters-statistics/

The median household income of U.S. homeowners is $90,000 annually, compared to $40,000 for renters

Though I you’d also expect it to tend to decrease the value of the home equity of existing homeowners. Probably decrease rate of construction if it just pulls capital out of the housing market, so have a longer term decease on the housing supply. I imagine that this policy may not be a long-term survivor. Probably once it’s clear specifically what restriction he’s talking about, whether it’s real, whether it’s based on some kind of legally-questionable mandate that may be overturned, there’ll be more-sophisticated analysis done by people who deal with the field.

EDIT: I’d also note that this is the month when the extended ACA subsidies expire due to Republicans, and so some people are going to be paying significantly more for their health insurance, so I kind of imagine that Trump has a substantial incidentive to do things like talk about invading Columbia or really anything that will keep press coverage not on increasing healthcare costs in the US.