Many times what? Most forks die within a few months. Especially for big and well known projects. For example, io.js was a fork of NodeJs. Didn’t last long and was killed by NodeJs. All the Firefox forks are pretty much dead as well. Linux also had plenty of forks by people who disagreed with Linus and where are they now? I bet you don’t even remember their names.
Forks don’t work unless the original project is dead.