This is why I'm happy to live in a country like France where the government takes part in deploying those infrastructures (by investing money in the deployment). They planned to equip 50% of the territory by 2017 (which was achieved), and 100% by 2022. Same goes for public service, profit-focused corporations can't provide the same quality of service.
It would help if the USA was as small as France.
It is not the absolute size that matters, it is density and clustering degrees. And there are some sparsely populated countries in Europe that manage to build infrastructure just fine.
Population density:
USA: 35.0/km² (90.6/sq mi)
Norway: 15.8/km² (40.9/sq mi)