Imagine the Mexicans in the US southwest, working together with Mexicans in Mexico, started a terror campaign against the US. How different would our response be from the way the Turks are responding?
Look, I have no argument with the need for action by Turkey, and/or equally by the Kurdish authorities in Iraq.
Your analogy is very apt. We would need to take action against the miscreants on our territory, first and foremost, but we would need to move against those in Mexico proper as well.
But, in the process, we ought not shell Tijuana or Nogales.
We would need to work with Mexican authorities to identify and root out the miscreants on their side of the border. And, I am sure that we could ensure their cooperation.
I am equally sure that Kurdish authorities in Iraq do NOT want to see all their gains put to maximum risk by a few die-hard marxists. Working together, the Kurds, the Turks and the United States can put an end to the actions of these few factionalists. And this should be done without the need for the Turks to shell Iraqi Kurd villages.