In my experience — as a once-practicing trial attorney — when the smell of money is in the water, ideology is generally not the first priority.
One factor in the difference between the United States and Europe may be less accurate information in the United States.
Some ideologies (such as Darwinism) wrap themselves in the mantle of science even though they lack — or are inconsistent with — the evidence.
The authors also want sex designations removed from important documents such as passports.
Children with gender dysphoria need help. But transgender treatments for them are not based on good evidence.