[fenimi]

One reason why many people, particularly feminist women, find "cisgender" a disagreeable term is because it's a linguistic concession that makes it more difficult to argue for the rights of actual female women, as it implicitly redefines "woman" to include males and "man" to include females.

[thelopa]

Disagreeing with a particular taxonomic way of describing different types of people simply because it makes it hard to advance your political beliefs does not mean the words involved in that taxonomy are slurs. “Slur” has a particular meaning, and it isn’t “makes it hard for me to achieve my political goals”.