The ideological part is the basis behind changes to policy and law such that single-sex spaces become mixed-sex spaces. For example, opening up women's locker

The ideological part is the basis behind changes to policy and law such that single-sex spaces become mixed-sex spaces. For example, opening up women's locker rooms to men who say they are women. This is to the benefit of the men who desire such access, but to the detriment of women who want to keep their female-only safe spaces. Whether cases like this constitite a justifiable change in policy or not is where the ideological divides lie.