Almost every comment you're leaving here seems based on a Just World Fallacy, which is very close to survivor bias. It's easy but misleading to look back at the good aspects of the past and derive a teleological theory that ignores opportunity costs.
2. I'm sure Microsoft's competitive tactics had something to do with it, but it also sounds like Netscape had it's own problems: https://www.quora.com/Why-did-Netscape-lose-ground-to-IE