My point is that increase in supply alone doesn't automatically lead to less domination.
For instance increasing the supply of high quality affordable housing by 2% in a place where there is high demand might not mean 2% more people will get the houses at a good price. It can mean instead that investors buy 2% more houses in that area to rent it at a price aligned with the market value.
Wouldn't it be ok then if the increase was 5 or 10 or 50% of high quality housing ? Sure...but have we ever seen this level of increase result in actual well designed and livable areas ? I've personally only seen mild ghettos and weird super structures, and not all by skimping on the budget, but also because it's just damn hard to create a flourishing living environment from nothing.