I support Harris but you are right. This will not help new buyers.
Experts may agree but, as a homeowner, I very much disagree. I live in an area zoned for single family units and I DO NOT want the character of the neighborhood I live in to change. A zoning change will benefit the developers, not the existing residents. True my house will be worth more but I run the risk of my neighbor's house being turned into a multi-family rental. Then I'll have to foot the bill for new schools, utilities, roads, etc.