It's useless for normal transactions because why the hell will I use bitcoin if I want to pay something, for example paying 10$ for mobile network when I have to pay additional bitcoins fee which is nearly 2$? Is there any logic?
If bitcoin is too expensive to use as a currency, why not just stop using it as a currency? I have stopped paying for my beers at the pub with bitcoin (but yes, I used to: there's a pub in my city that accepts bitcoins), unless they specifically give discounts on that day for bitcoin users and it covers the cost of the fees (which actually happened recently in said pub).
Yet I haven't become bearish regarding bitcoin. It doesn't need to see mass adoption to have value. Look at gold. Who actually uses gold? Not me. And clearly not a lot of people if "using" means "transaction with". Yet gold is a couple hundred times more expensive than bitcoin. The catch here is that gold is a store of value. Its value lies in the very fact that it won't fall too much even if it has to go south. And guess what: bitcoin is also a store of value.
Bitcoin doesn't need to be used for transacting by the whole planet to have value. In fact, no one could use it for transactions that it would still have value. Ergo, high fees just mean a different conception of bitcoin from yours, not that "it is bound to die soon and that whatever shitcoin will take over".