What makes you so sure that Socialism would mean the end of war, famine and environmental devastation? Again I am repeating myself but every model of socialist states that has ever existed has failed to end war, terror and pollution. In fact their record in these areas is hardly ideal. You expect me to believe that your model will be any different basd on the exact same principles as these failed states.
Capitalism will always be more adept at change because it is far more capable of responding to the market and peoples needs, desires and wants than a model where the state/ workers committees decide. People vote for reform and vote for the policies that are implemented by government including legislative reform.
You are the ones trying to implement a different method of organising society so it will always be up to you to make the case for a socialist model as against a model that has shown itself capable of reform, change and improving peoples living standards over the last 200 years either via the market or via democracy or a combination of both.
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