First part of question unanswered.

What do you call my last sentence?↓

"other sexual minorities" would have all the common rights as long as they are consenting, sane and of legal age.

You are inserting that "all you need is lurve" remark as YOUR version of what I and others have said. When you consider that many 'natural' man-woman marriages have little or NO "lurve", it becomes silly to establish that as a condition.