They are definitely trying to blur the lines between normal behavior and homo perversion.
Contraception brings any normal couple a big step closer to being a sodomite couple, because neither is fertile! Both are 100% selfish. Not just engaging in sterile relations (because that could be said of older couples as well) but PURPOSELY, artificially sterile relations.
Sure, plenty of Prottys attack sodomites, but they really don't have a leg to stand on. When the sodomites retort with, "I prefer A to get my pleasure, you prefer B." there is no valid retort for them. I mean, no retort that isn't hypocritical and inconsistent.
But a thing about porn -- it's not just a bunch of nudes. If only! As others pointed out, there is "vanilla" porn but then there are dozens of specialized "fetishes" ready to go when that vanilla porn stops being interesting enough to "do the job". And like drugs, porn loses its effect over time, so that you need a greater and greater dose with the passage of months and years.
But early in this "cycle" is an emphasis on SODOMY, even between men and women. That is to say, copulation outside the natural vessel, and in particular "the back door". If you listen to modern speech, watch modern movies, you'd swear it's every guy's dream (spoken or unspoken) to have a girl who likes "the back door". That has to be a porn thing, because I've never used porn and to me that whole idea seems stupid. It is best summed up with a one word answer: WHY?
To a sane mind, not perverted or addled by pornography, one would always prefer to eat the fine meal set before them in a restaurant, rather than saying "no thanks, I'll pass today" and going out to the parking lot and licking sand, dirt, and bugs off the pavement instead. Or maybe taking a large syringe and injecting a weak "nutrient solution" directly into their stomach, like diabetics do with insulin.
So let's see what (((They))) have done -- a huge number of normal, heterosɛҳuąƖ couples are/were promiscuous, their union is purposely/artificially sterile, and they even practice sodomy.
Now you see why the Homo lobby has gained so much power? The majority has practically joined them!