Your argument is a thing you're not aware of can't exist.
Can't really talk to such a fundamentally moronic person, really. If you don't realise that there are things which you don't understand but others do, then there's just no helping you. Maybe try a few milligrams of LSD.
Must be nice to be smarter than professionals who make movies and cars. Wish I as much of a genius as you clearly are.
It's not actually, because the large majority of people are like you, who just won't accept the fact they're ignorant of something.
So which professional storytellers have said that there are no conventions in stories? Which movie doesn't have a start middle and end? Documentaries? Even they do. Because it's ingrained in humanity for hundreds and thousands and tens of thousands of years.
Who were the professionals whom I am smarter than?
Not Dan Harmon, that's for sure. https://youtu.be/RG4WcRAgm7Y