“Lifestyle” implies out of the normal.
“THE Lifestyle” implies there’s an ironically all consuming not-normal staking claim to be more normal than other not-normals.
Why not just dispense with the idea of normal, already? It’s a statistical distribution. Its proper name is the Gaussian Distribution. No one describes their relationship as Gaussian, and if they’re aspiring to be as like everyone else as possible, maybe they should.
Thanks.
While I am not familiar with this Gaussian Distribution, I think your point is that using the word lifestyle to describe ENM shapes of relationships makes them appear to be outside the norm, which could be seen as a bad thing. Whether because you're queer, non-monogamous, kinky, or even divorced, single at too old an age, or widowed, the only norm is married, hetero and monogamous. Everything else is somehow an "alternative," and therefore, at least mildly, if not very suspicious.
Straight mono marriage is the goal, the default. It's not a "lifestyle" because it's the golden standard. Calling anything else (which is also actually perfectly normal as well) a "lifestyle" makes it seem a bit lesser or lacking, and at least a bit suspect.
However, in our Western culture, the amount of people who are totally Kinsey-scale straight, completely gender conforming, completely sexually vanilla, and want and
have achieved a happy monogamous hetero long-lasting marriage are probably pretty few, if we are honest about it. So making a big deal about "alternative" lifestyles shows more prejudice than a basis in reality.
I am not sure that's what you're getting at by saying "normalize our differences, denormalize normal," but it's my best shot.
When my 30-year hetero/mono marriage was flailing, I went to one therapist, to whom I confessed that one reason I was struggling in my marriage was my tendency to "get crushes on other people." She outright told me, "Married people
shouldn't get crushes on other people." I fired her, of course. She actually told me I shouldn't have the feelings I had. I've rarely been so insulted in my life. And by an extremely well-paid professional, no less!