You said you had to buy a cheaper home to make money from the equity in your home. That is not true, and the examples I have showed how.
As for “free”, what is free is the increase in value of your home over time. That’s the investment part. There are people who bought homes in San Francisco back in the 1970’s who are now multi-millionaires simply due to the many-fold increase in the value of their home. With a HELOC or a reverse mortgage they can gain access to some or all of that money without needing to move to a cheaper house.
No, of course not. Competition needs to be preserved through strong antitrust laws. The US used to have a very active FTC which sued to prevent mergers and attempted to break up monopolies in order to preserve competition. Then it went through a long period of inactivity due to monopoly-friendly governments.
Now, the Biden administration and their appointee, Lina Khan, have resumed this important work. Of course, this could all be jeopardized if Trump wins the election, but so could a lot of other important things.
As for Canada, we favour oligopolies under a misguided theory that large Canadian businesses will protect Canadians from foreign competitors to the south. We’re paying the price for having no trustbuster with teeth, like Lina Khan.