1. Capitalism is poor at providing value to the majority (eg. globally the top 1% have more wealth than the bottom 99%) and ensuring the long term survival of the species (eg. protecting the environment).
2. However, until there is actually a viable alternative it is a moot point. People who criticize capitalism tend to be caught up in marxism which in reality is an old, overly simplistic and unstable system.
3. Use the open source model to build a compelling alternative to capitalism which can then be promoted.
I've completed a very alpha version which details the system reasonably well but I guess the current goal is to get help, which I have found difficult.
