To be fair, there is a ton of garbage that is posted here about how systemd is going to destroy Linux and be a huge failure that only a handful of rather loud but determined people can see coming. What’s worse, many of the arguments are blatantly disingenuous, so cut him some slack for wanting to put the issue to bed. And he has just as much right to point out what’s wrong with your arguments as you have to make the bad arguments yourself. You tried to make a case against systemd, he shut it down, and now you’re complaining that you weren’t addressing him and that you’re just sharing your opinion instead of trying to offer any kind of rebuttal. Are you wanting to share opinions or have your beliefs reinforced?
Edit: I actually came to this thread because I wanted to thank OP for creating the wiki entry for getting Parabola set up; and I got frustrated by the random anti-systemd spam in a thread that had nothing to do with a problem with the function of systemd. I introduced myself to Linux with Arch Linux on my MacBook, and now I’m about to go see what it feels like to have working wireless from a fresh install of an Arch derivative. 
Thanks.