Repeating the whole "don't campaign for OMD to be undone; just buy AU comics" statement sure comes across as that. (And once again, is is this really the place to discuss this specific topic?). So far as providing evidence, I don't think you're breaking any new ground here; repeating the same thing over and over again only goes so far.
Not how you're coming across.
"Heads I win, tails you lose," huh?
Also, in general, from what I remember, most depictions of the relationship (that weren't trying written with an agenda to tear it down), dealt with complications that came from Peter's double life. Some of the '90s prose novels did that pretty well, the Venom arc in RYV used the superhero elements as a metaphor for the give and take in a marriage, and it's certainly long been a characterization that MJ's catch-22 of sorts is that she wishes Peter didn't have the Spider-Man calling but the sense of responsibility and moral character that leads him to it is a reason she fell in love with him in the first place. Heck, even the Ultimate comics, which were "just" about high school sweethearts, didn't shy away from just how hard a relationship would be.
With all due respect, I find your logic faulty, at best.
And, as stated before, that's something that happens in life no matter what.
So, the series that repeatedly stated that Peter and MJ wanted to get married when they were adults, was very up front that the two of them were in love for real, ended with them basically eloping, and debuting at a time when the editors were trying to erase the marriage in 616 was meant to be an anti-marriage comic? That some pretty impressive pretzel logic. I mean, does it at least follow that the audience of that series would heavily overlap with fans of the marriage?
Funny story, but do you know why I'm such a fan of Peter and MJ being a married couple? USM was my first Spider-Man comic and it's still one of the most anti-OMD things Marvel ever authorized.
Look, the save Star Trek campaign has been heavily mythologized, but the point still remains that viewers wrote in and that did have an impact. You can say as much as you like that letter writing to the Spider-Man editors is a waste of time, but what if it does make a difference
Irrelevant; the comic's sales numbers and customer base are a different demographic. Also, using pro-Peter/MJ material like the games and USM comics, which have heavy overlap in target audience, kinda weakens the point (e.g. Peter/MJ being a couple is "normal" Spider-Man and the single OMD variant is off-brand); if anything, it shows that there's more of an audience for the marriage and sundry than there is for the editors' beloved OMD Spider-Man.
So, the moral of the story is that a comic series about Peter and MJ being a couple outselling the core series is proof that Marvel shouldn't have them be a couple there? Feel like we're splitting hairs here, at best.
Sending an email takes what, a few minutes? Not sure how that's much of a waste.