I liked your summary, Jason. I just want to comment on this:
Jason Bourne wrote:3 Baggage from prior relationships when you finally find the one you commit to the rest of your life. I think this can be a very real problem. Spouses may feel inadequacy, wonder if they measure up to former lovers, question whether their spouse is still fantasizing about a former lover, wonder if their spouse is reluctant to try something sexual if they are that way because they are bored or have "been there and done that" so the relationship they have now is not interesting, new or exciting. And what if a former lover lives in the area, is still in the spouses life and so on? I think that creates some real tinder box problems for the other spouse. What if one spouse has never been with anyone else and waited and the other did not? This can create some real problems as well.
I think this could potentially be a real concern for some, but my initial reaction is to think, "Why would someone marry another when the sex wasn't the best with that partner?" I mean, that why I'm advocating for premarital sex in the first place, so that you go into marriage knowing what you're getting yourself into intimacy-wise.
I think much of this potential problem could be minimized with healthy communication. People shouldn't be afraid to tell their partner what they like and don't like, and they should regularly compliment their partner on the satisfaction they get from it. I personally have no problem with doing that. My wife deserves to know, and she is without a doubt the most compatible lover I've ever had (I did go through a very promiscuous period in my early twenties, so I have enough experience to feel good about telling her how great she is).
Communication should happen up front, too, before the marital commitment happens. If both partners don't disclose the gist of their sexual history prior to marriage, well, they're starting off the relationship on the wrong foot anyway (as poor/dishonest communicators). Their problems go deeper than sexual incompatibility. People shouldn't be finding out the partner is/isn't a virgin after the vows are made no matter what.
So, I guess I would say open communication is part of what entails a healthy, responsible relationship between adults. Number 3 on your list should never be a problem after the vows are made. If it is, it's a case of people rushing irresponsibly into marriage before they were ready.
God belief is for people who don't want to live life on the universe's terms.