America's wireless operators plow billions into capital investment, because there's market demand for it. That's the future. "Fiber" inspires geek fetishes because it's fast. Non-geeks on the other hand are using their phones to watch video and don't care about the alleged goodness of "fiber". After all, if they did care, FiOS would be expanding and Google would add more Fiber cities.
Government investment in FTTH is a twenty-first century boondoggle waiting to happen. It's nowhere near my list of beneficial things government could do if it wants to start plowing billions of dollars into capital investment.