If there's still anyone on this planet that doesn't see this as Putin, Erdogan and Trump's plan to destabilize Europe and break up NATO allies
No I don't.
Mr Trump has never had a plan in his life. He is a narcissist who thrives on transactional interactions. What he does is only good at the moment and maybe the next 5 minutes.
Ask yourself why Trump would do this so abruptly
Because he is a narcissist, he makes decisions in the moment. Check his history of decisions while occupying the WH. Many are on a whim, or gut feeling, or to impress a dinner guest, etc.
He would have in some sense fulfilled a campaign promise to bring troops home. This is big with his base. So what he gains is their unending loyalty, love, and praise. A narcissists dream.
As for the Turks and Russians, there is something different. The Turks have since the time of the Greeks had problems with the Kurds. The Turks want to subjugate the Kurds who want independence. There will be blood.
The Russians have no real interest in the Turkish-Kurdish problem except it could have a real impact on the ongoing Syrian civil war. With the Turks fighting the Kurds it would allow Assad to regain a stronger position and perhaps defeat the SDF.
Erdogan threatening Europe with ISIS fighters and refugees is not a plan but a reaction to European criticism.
Taken all together what I think we have is a complex situation in Syria. When Mr Trump pulled US troops from the border region he set into motion a complex machine which had the unintended consequences of improving political positions of Turkey, Russia, Iran, and Syria (and very possibly ISIS) at the expense of the SDF. While it may look like an elaborate plan, it strikes me more like sheer luck for the aforementioned states.
The situation on the Turkish border was like a row of upright dominoes waiting for someone to knock over the first one to set into motion America's lost stature and credibility in the world, improved geo-political positions of Turkey, Russia, Iran, and Syria, and the potential for re-emergence of ISIS. All of this because we have a narcissistic buffoon occupying the WH.