Gay couples are often prominent in the first wave of gentrification because they typically have two incomes, no kids, no worries about school districts, and a somewhat higher threshold of risk regarding personal safety, especially if it is two men. Singles and young couples without children are next; this is the point at which a neighborhood starts to become chic, and dogwalkers start to chase the junkies out of the local park. Families with children are the last wave. For them, a lot depends on the school situation.
Conspicuously gay couples bring scorn from the local urban sophisticates. They already risk losing their room to them when their landlord cashes in. I know several people who have endured this. The pioneers get the arrows.
They will not tolerate “homophobia” from a church several states away but they will take it from disenfranchised people on the same block.