First off, there are lots of problems with systemd (mostly down in the details) and controversial defaults at times, bugs, bloat, and hickups and whatnot. Like basically in all projects all the time. So of course there is valid critique on systemd, lots of it.
But I have a problem taking any argument seriously that is based on “I am smarter than everybody else”. I do not like detail Y or developer Z, so the project X sucks and everybody that disagrees is either a paid shill, forced into it or just stupid. There is no point in even talking with people like that.