You are so wrong, it’s funny.
The PKK is not all of the Kurds. Most all Kurds are Muslims, though.
What you are saying is effectively this in an American context:
“It is indeed inappropriate to call the Animal Liberation Front a terrorist group.
The Americans are animal welfare supporters and helped us a great deal in the United Kingdom.
They are terrorists in the same way the IRA were terrorists in Northern Ireland, Irgun were terrorists in Israel, and we were terrorists against the British - they are fighting a guerrilla war of liberation against an occupying force.