You’re operating with massive hindsight bias here. It wasn’t a foregone conclusion in 2007 that iOS and Android were going to win. BlackBerry (and indeed many of the players you listed) had a chance to compete and they simply didn’t. Also I’m not sure where you got the idea that BlackBerry didn’t have a vertically integrated supply chain. They absolutely did. I worked there in the mid-2000s and the hardware was manufactured literally down the street from where the OS and apps were built.