No problem. I think we're closer to being on the same page than either of us articulate. I find it incredibly easy to write songs but practically impossible to sell them. I understand your point about your Dad, but I'll bet at some time throughout his life, when no one was looking and no one could hear, he made up a song and was singing in the shower. Obviously, you're correct regarding talent. There's some that can produce hit after hit and they are actually great songs. Every industry has it's top performers and there seems to be people who are born to be great at something. They can make the difficult look so easy.
There's also some luck involved I think. Good discussion and I've enjoyed reading your posts too and look forward to hearing a lot from you.