All the tools this guy advocates are already in place.<p>Property tax already reflects the value he&#x27;s looking to include.<p>Eminent Domain is already available to take land for public use.<p>Gentrification is just about the lamest issue on the planet.  It&#x27;s essentially renters remorse.   You can buy a house in Detroit for a couple thousand dollars, so go get in on the ground floor and stop crying about how expensive the Bronx is now.<p>His ideas are dangerous and poorly thought through.  There were mansions in communist Russia for the political elite.  So nothing changes the fact that some have it better than others.  I&#x27;d rather the wealthy who produced value be rewarded for their effort than a bunch of dictator&#x27;s friends and family.