Low interest rates isn’t in the common persons interests, it’s in the interests of those who own and those who have relationships with people close to the money faucet
Low rates very much in the interests of people who want to get mortgages.
(Interestingly, because of the very long mortgage duration, US homeowners are very insulated from interest rate shocks. But it will show up in consumer credit, car payments etc.)
Low rates are also expansionary for the economy in general.
Actually I think moderate rates are best for mortgages. Low rates just push prices and thus down payments to sky as have been seen. And that is no good. Moderate rates keep prices at cost of building. In the end monthly payment is what matters.