Correct usage of terms.

I have always thought of political correctness as a politically correct way of saying something totally incorrect. With feminism or political correctness call it whatever you want, coming into full force recently, you suddenly have school forms requiring ‘parent’s signature’ instead of ‘father’s signature’ and certain corporate terms like ‘manpower’ being converted to ‘workforce’. The 'policeman' is now the 'police officer'. A 'chairperson' has replaced a 'chairman'. 'Mankind' to 'humankind' and 'manhours' to 'workdays' are other examples, But for this transformation to be complete, why don’t things work the other way? Like why isn’t India now referred to as ‘our beloved parentland?’ OR why don't we speak in out 'parenttoungue'? I was searching for other examples, but turns out that there are few. I asked this wo.. person, "are there any jobs that are specefic only to women?" and she burst out laughing and said I shouldn;t ask such questions. I understood what she was referring to, and my emberassed silence was mistaken for innocent wonder, so anyway.... on the other hand, pretending this hasn't happened would be politically incorrect, especially since 'stewerdesses' are now 'flight attendants'.