You are of course more then welcome to start your own version of a digital currency with your own ideas, present it to the market and see if it fares better. But you cannot plan for success. If we had a person capable of such a thing I'd want them to plan for my life and be our king.
I have no intention to do that, but others might.
What I am advocating is a change that fixes what appears to be flawed while there is time. You cannot hide from the economic reality and simply focus on the technology. A digital currency must fulfill the needs of the users if it should expand. I want to believe, the community wants Bitcoin to grow and be accepted in many places. If it is just a fun project to test out a technology, then maybe I am in the wrong place.