Pretty much all your assumptions are wrong. There is no evidence 1 & 2 are true, in fact the opposite. Apple sells more single models of phones and tablets than

Pretty much all your assumptions are wrong. There is no evidence 1 & 2 are true, in fact the opposite. Apple sells more single models of phones and tablets than virtually anyone. Almost every phone they sold the last year was a 7 or a 7+. And the reason for their profit dominance isn’t other companies losses, it’s they are competing against commodity makers with compelling unique products and value. Beyond iOS and iTunes is their custom SOCs, which are years ahead of their competitors.