Allow me to temper some of the glee exhibited in the comments and even in some of the reports but a key line here is: "The divvying of antitrust enforcement does not mean that the agencies have opened official investigations" It is worth keeping in mind that antitrust enforcement in the US doesn't care about whiny competitors but if the enduser and customer is harmed and it doesn't appear to be the case when it comes…
there is a long list of companies and markets worthy of antitrust scrutiny... The real drag on the economy are the high prices of healthcare and housing I'm curious what you see as the antitrust violations that lead to high housing prices?
You have to live somewhere to get a vote there, so the people (sellers) who already own property in a location get a vote while the people (buyers) who are about to move there don't until after they have and have switched from customer to owner. The result is that the existing property owners have a lock on the local government and pass anti-competitive rules that constrain the housing supply and raise prices.
You might think renters would help there, but there are areas where the majority are not renters, and the areas with majority renters often end up with abominations like rent control which cause market rents to go even higher while neutralizing the threat to the anti-competitive rules by paying off just enough of the tenants to retain local majority support.