Complex sentence: Collectivism is basic element of human culture that exists independently of any one political system and has existed since the founding of human society ten thousand years ago and has seen in the very first human societies and all that have existed since.
Split into simpler sentences: Collectivism is basic element of human culture that exists independently of any one political system and has existed since the founding of human society ten thousand years ago. It was and has seen in the very first human societies and all that have existed since.