Oh I'm sorry, I did not understand your point. Freely donating most of one's wealth and possessions for the better good is helpful, but it is not, nor has it ever been a principle encouraged by Sanders.
When you describe capitalism as "free to do with it what ever he want(s)" we have to acknowledge that money is limited by all kinds of laws, such as ones that disallow the purchasing of slaves, and limit the amount gifted to a political candidate.
The problem occurs when very few people have access to excess capital, or economic energy, which would grant them more power than the limitations created by the government could control.
Sanders' political ideology is not Communism. He identifies as a Democratic Socialist, and is in favor on expanding the rights of education and healthcare through taxation.
Thank you.