Google could create the greatest messaging app on the planet, but the carriers have more control on Android. They would just not install it on their phones by

Google could create the greatest messaging app on the planet, but the carriers have more control on Android. They would just not install it on their phones by default. Which means it would not get the traction needed to succeed. Heck most US carriers don't even install one of googles current messaging apps, they install their own customized one.