I am really not liking this Sam guy and how he does things. He has an attitude of “my way and only my way, and I don’t care what you think or do”
This is pretty much quintessential founder behavior. I have had my run-ins with people like this, and the relationship is usually short lived. I do not drink the kool-aid, and question pretty much everything. These types of personalities are like oil and water and do not mix. You almost need a third person to act as a emulsifier to allow the oil&water to mix without separating.
If I thought I had a great idea, I would want people to try to poke holes in it. Yet founders often universally seem to be the incredibly sensitive and insecure about their idea.