This is not sustainable over a longer time. Bitcoin popularity might be increasing but with fees like now it will never really work.
If this is not sustainable, then people will use Bitcoin less, if Bitcoin is used less, the fees will drop, if the fees will drop, Bitcoin will become used more, if it's used more, fees will rise, if fees will rise, someone will make a post on Bitcointalk how this is not sustainable

This problem has existed for many years, and Bitcoin is still the #1 coin with no competition. Countless coins claimed to have solved scalability, and they are in dust now.