It's a classic wedge issue. Very controversial ideals are taken from the fringes and amplified partly because they draw a lot of attention and make money for the media, partly because they drive fundraising for the political machines, and partly because they cause chaos and division in any grass roots movements along religious, racial, and other non-economic class based lines that could potentially be problematic for continued party leadership in the two-party state should any kind of populist grassroots movement form outside of party control.

Hence why you see the same issues that are "unsolvable" and come down to fundamental philosophical positions that are not easily reconciled. Abortion and Marriage being the evergreen wedges.

It's why any sort of abortion "debate" is essentially pointless since it all boils down to whether or not you believe the fetus has a soul or not. Can't be proven one way or the other. Plenty of zealots on either side of the issue that take an all or nothing approach and sink compromise positions, and all the while skillfully played by the political elite to channel energy and money into their own political machines.

Trans issues work the same way. Take some fringe issue make it a major issue through exposure then play at the emotions and passions of the voters to drive the political will and capital into your machine and bind it for your own purposes.

It's incredibly useful for getting people to become single issue voters and making them ignore all other aspects of the party that they don't like ensuring they vote against their own interests except for this one social issue that will make little to no material difference in their own life.

I predict in a few years you're going to see de-transitioner become the new wedge issue. But I don't think it will be played straight right in favor left against. Instead the left will argue that it's a part of gender fluidity and the state should pay for it, the right will argue that fender isn't fluid at all and will argue against state payment for it, in this way you'll get both sides of your issue locked into the party of choice. The anti-trans LGBT side will argue against the obvious when it comes to detransition and vote against it because of the financial angle and the left will placate the rabid gender ideologues mad at the thought of people "betraying their gender" with the same "every choice you make it right" nonsense we've seen lead us to where we are now. And that will be the new wedge. Albeit while some kind of polygamous or polyandrous marriage legalization argument will be held in the wings for future use as a wedge issue depending on the timing of cultural outrage.

All the while the argument will be directed in a way of right vs left and should the state pay for it or not, is the identity valid or not, and away from saddling the doctors and medical industrial complex with sanctions for allowing such a blatant profiteering scheme with no scientific or medical basis for continuing to make the doctors rich at the expense of the mentally ill and the taxpayer. Which would be a more populist movement that would get bipartisan support but since it threatens the interests of the ruling political class then public outrage will be directed through the culture war wedge and focused on having the "proles fight amongst themselves" rather than directing their political will in a direction that would unseat the people who were profiteering off of the scheme in the first place.

All of this political outrage, all of the emotional outbursts and purity spirals result in you and your neighbors being alienated from each other and unable to find common ground on issues that effect you, unable to realize your own political will to further your own ends, and instead to bind your energy and capital into either disrupting others in your same social class from wielding their own or directing it directly to causes that benefit the current political ruling class.