Yes I agree, but in practice it is simply not cost efficient to build a separate prison for less than one percent of the population, which is why I also tend to fall back on a separate wing in the prison of their birth sex as a compromise. It's not a compromise that's well received though, because often they wish to completely co-opt women's spaces. Why? Validation? Exploitation? Whatever it is, it doesn't justify the adverse effects of housing natal males in women's prisons and on other institutions/services.

Again, it is a matter of objective, material, measurable reality versus subjective, internal, individual ideology. I don't see why the latter should ever prevail over the former, and I am still waiting for a QT to analyze how some people's individual gender ideologies are more or less valid than others and how they can tell the difference.