1) Arranged marriages do not equate to "true love" by any definition. True love just happens. It can't be controlled, doled out, or mandated.
2) So I'm guessing you've never heard of swingers or open relationships, then?
3) Yes, because there's no way you'd get cheated on, right? After all, that's what you people say happens in every non-"Chad" situation. So by your own cult's reasoning, this is false on its face.
4) Other than in high school where social pressure is on for... well, everything really, those of us that are NOT in high school don't generally experience said anxiety. Singleness is only miserable if you choose for it to be.
5) See points 2 and 3. Also, building relationships isn't something that happens automatically, even if you force two people together. It requires effort, which is a dirty word in your cult.
6) Where does that fit into the rest of this? If marriage is mandated universally, no one would be unmarried, therefore you wouldn't be offed. And given your mentality, you'd still be miserable.