I respect your point of view when it comes to bitcoin. It wasn't entirely useless if a lot of people are benefiting from it. A lot of people get rich because of bitcoin and I think it is quite rude to say it was useless.
If bitcoin is low in cost then I will agree to you point of view about it, but based on what I can see, bitcoin is very usefull. Many people getting ricj because of bitcoin, I too benefit on it a lot, I can now pay my bills and buy something I want. So I can say that bitcoin is very usefull