I agree to others. Bitcoin is just a currency. Some people confuse others by calling it gambling because they seem like to not know what it really is. When you invest real money into somewhere and then it gives you BTC, then such kind of activity may be called as gambling, but not the currency itself.
I to agree with you because many people are using Bitcoin for gambling. So it makes them to feel that Bitcoin is gambling but I never felt Bitcoin is currency where very soon you can use it to buy all resources you want with Bitcoin.
Bitcoin is not a gambling because it is not an addiction to just a kind of work. I treat it as a hobby, and at the same time work. Thanks to that I am happy in what I do and feel confident in it.