If I were President, I wouldn't try to rule my country like a (particularly stupid) King. I would ask Congress to convene a task force comprised of economic experts, and then to propose, debate, amend, and hopefully pass a piece of legislation that addresses housing costs while having the consent of a majority of elected representatives. And if Congress said no, I would suggest that the citizens vote in new Congresspeople who will actually take the actions they desire.
Also I would ban any stupid kids from voicing any "if I were in charge" opinions, on penalty of time-out and having their phones taken away.