It's not really coming from those though? At the same time that housing costs have ballooned, we've also had a significant migration back to cities. When a larger % of the population are living in high density locations you are going to naturally have a larger % not owning homes. Owning your own home does not align with the density required for a city to function.
At the least, narrowing down the topic to 'Why do people rent instead of own a condo?' is a much more meaningful topic over 'Why do people rent instead of own a SFH?' since a condo is a more viable option in locations where most of the renters are.