>> wireless was a serious alternative that wasn’t that far away

But it really isn't. There are hard physics limits on how much data can be transmitted within a given frequency band. Fiber total theoretical bandwidth is is essentially infinite in comparison. All the traffic of the entire internet could probably flow through a single fiber bundle perhaps less than a meter wide. For things like streaming 4k/8k/12k (real 4/8/12k) to multiple devices, wifi will never compete with fixed lines.