Kurds are as diverse in opinion as can be. Broad generalisation are misleading.    Northern Syria is autonomous.    Autonomy in democratic confederation based on decentralisation,  universal human rights and respect for private property. The right of the people to self organise and assent to confederacy.      Added: this is about securing control of the pipeline. Turkey does not want Kurds to have more.influence.... Look at a map.    YPG = by constitution designated as a people's militia whatever your personally held beliefs and convictions you can be a member.    Turkish invasion into autonomous regions = invasion into Syria.    5 because of autonomy, Assad must make a deal to assist.  So, stop echoing lack of knowledge.