The sick man of Europe should not be in NATO. NATO has outlived its usefulness. NATO is nothing more than American troops protecting Europe. Bring the troops home. Let Europe pay for its own defense and fend for itself.
Apparently the Turks were good fighters in the Korean War and during the Cold War they were strategically useful. They have been occupying one third of Cyprus for 48 years and it doesn’t look like they will ever leave. During the Iraq War of 2003 they wouldn’t let the US invade Iraq from the North. So not very useful as allies during the last 69 years.
If the US leaves NATO, NATO crumbles to dust.