The only way to keep Turkey from dividing European members of NATO is by first kicking it out of NATO. If that is not done, Turkey has the ability to destroy NATO if it gets NATO members strenuously at odds with each other over some military conflict Turkey is a part of. Some NATO members might want to say that NATO and its members were treaty bound to support Turkey, and that members who believe that are going to support Turkey. Other members (hopefully) can take the position that Turkey is wrong, and on the wrong side of a conflict, which should deny it NATO support. If the conflict brings in Russia against Turkey the divisions in NATO could pull it apart. I say get Turkey out of NATO now.
“Other members (hopefully) can take the position that Turkey is wrong, and on the wrong side of a conflict, which should deny it NATO support.”
NATO members really don’t have a choice, if Turkey is attacked. If Turkey is the aggressor, then NATO has no obligation at all.
One point regarding a possible conflict between Turkey and Greece. Within the last few weeks, Greece, Cypress and Israel entered into a mutual assistance treaty. While I am not certain, that treaty may include military support. If Turkey attacks Greece, then Israel and Cypress may get drawn in as well. Whether that will cause the rest of the Middle East to go up is an open question.