Linux was/is an extremely flexible system. The vendors like RedHat should be able to refashion Linux in what ever way they see fit. The big problem with SystemD is that it stepped over the red line from in-house RedHat Linux component like SE-Linux and there various "enhancement" to a rigid default that attempts to lock down a large array of system components under a project that has commercial motives and drivers, driven by a single vendor. And it was done with a pre-meditated social engineering push which was quite nasty. Big no-no for Linux and Open Source eco-system in general. Projects Like Linux from scratch, GNU, Busybox etc will not role over for the endless attempts at vendor lockin. Its all been tried before and while the players may be new the game is very old and ultimately we will defeat these new attempts just like we did with SCO and the proprietary Unix/Microsoft Corporations that tried to kill Linux in the 90s.