Even though the fee is high, Bitcoin is very known worldwide and a lot of people are using it to make a transaction even on black market.
It will not be easy to change the king of cryptocurrency.
You are right dude, i think it is not true to said that btc is useless because eventhough the price of btc still decrease but btc valuable and can be good choice for investation. Nowadays, btc has already known by most of people in the world and some of transaction can used btc as a payment. I think the decreasing price of btc just temporary but few months later btc's price will increase drastically and can give more profits for holders.