No idea how you get any of this from my post. My whole point is that people should be able to wear/do whatever they like, without being immediately labelled as a particular gender as a result of those choices. There would almost certainly be more variety in what people wear or buy, not less.
I think that's where a lot of us are at with this debate, at least when it comes to doing whatever we like. However, the labelling of people by gender....or sex...or something....is going to happen and is not something we are going to grow out of. In my opinion, we shouldn't grow out of it. It helps perpetuate the species.
What I think most of us do want, though, is to reduce or end the pressure to conform to behavioral stereotypes imposed because of our sex. Whether it's wearing high heels, or knitting, or watching NASCAR or playing Chess, people should be able to do those things, without judgement, regardless of what we look like with no clothes on.
The real controversies come in, though, when some people insist that they have one sort of body, but that society must treat them in all ways as if there is this very real, very important, thing called "gender", which is often associated with one sort of body, but their body is different, but they still have to be treated as the other sort of body, but, it gets very confusing to even explain, so let's cut to the chase.
The real controversy comes in when a girl on the swim team is told that she has to take her clothes off in front of someone who has a dick, and if she doesn't like that she is a horrible, hateful, bigot.
The other area of controversy is that she has to compete athletically against someone who is has a biological advantage that she has no hope of overcoming.
At least among people here, that's what it's all about. Elsewhere in the world, there are people who care who you sleep with and what sort of underwear you are wearing, but the people here figure those are your own issues and more power to you if you defy the conventions, but we draw the line at actually declaring that a man is really a woman, so stop complaining when "she" sees you naked.