Try disconnecting the EGR valve and plug the hose in case it is getting vacuum at idle when it warms up for some odd reason. When diagnosing a drivability problem, I like to find out if it is rich, lean or ignition. I have a propane bottle with a valve and hose that I use to find vacuum leaks. It was used to set lean idle drop on Chrysler products way back when, and also a recommended procedure from the Allen Test Center for determining if an engine is lean or rich. You can use a regular propane torch also. When it starts to die, put some propane down the carburetor throat. You can use carb cleaner too. If it picks up and runs, you are lean and have a fuel pressure or carburetor problem. If it dies instantly, it may be rich or have an ignition problem. It sure looks lean in the video when it dies. It could have some crud in the float bowl getting into the idle circuit. You did not say if it has spark at the plug when it dies. It could be the pickup coil or the coil if you have no spark until it cools off.