No. Most rural people drive into town, like the woman who prompted this conversation by regularly driving to her school parking lot for Internet service. That's the problem we're trying to solve here.
Jump to 2:48.
Direct line of sight, couple hundred feet, even rain could potentially block it. A house nestled in a sparsely-populated valley between mountains and surrounded by trees has no hope. If you are going to be mounting a line-of-sight transceiver on your tallest tree to communicate with some tower on a nearby mountain, well, they've had microwave broadband internet services like that for decades now and they really only offer it where the population density supports it... not where this woman lives. 5G is WORSE than existing technology for getting broadband to rural people... certainly not a better-suited solution.
...and a tower for every "human" (household) in the middle of nowhere isn't any more feasible, and that's almost what you'd be doing if you relied on 5G in the same situation.