It's worth noting that eliminating SFZ doesn't mean that people are coming to take away your home. It's simply legalizing a diversity of other types of housing.
Diverse Housing Types Promote Diversity: Research indicates that neighborhoods with a mix of housing types, including single-family homes, duplexes, and multifamily buildings, are more likely to exhibit racial and income diversity. This suggests that single-family zoning, by limiting housing diversity, may negatively impact overall community diversity
https://housingmatters.urban.org/research-summary/housing-diversity-makes-communities-more-resilient-against-economic-downturns#:~:text=Past%20research%20has%20shown%20that,promote%20racial%20and%20income%20diversity
Impact on Inequality and Efficiency: In the United States, local planning often heavily favors detached single-family homes, known as R1 zoning. This approach is criticized for exacerbating inequality and undermining efficiency, with historical motivations rooted in classism and racism. Such policies might contribute to maintaining these inequalities today.
https://www.tandfonline.com/doi/full/10.1080/01944363.2019.1651216#:~:text=Local%20planning%20in%20the%20United,racist%20motivations%2C%20R1%20today