Trump's nationalized 5G idea is brilliant in that it consolidates all efforts, but also serves to protect freedom. Under the privatized approach we use now, wireless ISPs spy on us, and sell the data to the government. That's constitutional and legal, because the government didn't do the spying. Under a nationalized plan, it would be unconstitutional for the government to conduct dragnet spying.
Do we drive on corporate owned highways? No, and we have the most extensive highway system in the world. For comparison, look how well privatized rail worked out. You're right. Privatized infrastructure sucks.