Monty Hall is psychological bullshit
After your first decision, the host will ALWAYS open a goat door. There will ALWAYS be one goat and one car remaining. You have no impact on this outcome no matter which door you pick. It will always end with the same result. The first decision has zero relevance.
The first decision exists purely to act as a mind game to make you consider additional variables in your second decision which ultimately hold no meaning. Monty wants you to hold a sentimental value towards one door over another, to frame the decision as 'stay' or 'switch'. But that's purely psychological.
When framing the decision as "stay" or "switch" you get 1/3 to 2/3. But when you frame the exact same decision as an isolated event, an individual choice between two doors - which is exactly what it is since your first decision made no impact on the outcome - it's unarguably 50/50
This is why abstract probability is just bullshit pseudoscience easily conflated by irrelevant data
Prove me wrong (you can't)