The vast majority of Linux users consider systemd as a good thing because it apparently makes system administration easier. They also don't agree that systemd is monolithic, because it's actually designed modular.
But of course there are detractors. The only thing I like about systemd is its declarative service definition and parallel service startup. But if I wanted to run an OS with bloated and inscrutable software (even with the source code), my choice wouldn't be Linux or Systemd.
I also routinely switch parts of my OS. This is harder with systemd. Although it is modular, the modules are so tightly coupled that it will prevent the replacement of modular components with alternatives. Frankly, I think systemd is killing the innovation in system component development.
Except if you think about it, this is possible with smartphones too. They have cameras in the front and the back. The phone just has to be vertical. But docks and holders take care of that. The only thing left is the camera to be recording. Sure there are permission systems. But they're all software. No physical switches or indicators for safety. You won't know even if it's recording. And if it's recording, it will uploading it just as easily. We're addicted to a spy device.