Not only does the word ‘cis’ include people that were erroneously included in the sex category. It is also meaningless from a philosophical belief point of view. The prefix ‘cis’ involves the user actively categorising other people’s philosophical beliefs without knowing what they are.
Because it also implies that someone who is ‘cis’ actively identifies with their ‘gender identity’ as it aligns with the sex they were ‘assigned’ at birth.
Ergo, everyone according to the term believes in gender identity.
But few people believe in gender identity as a concept. So, the reality is that ‘cis’ is a grouping that has a tiny fraction of the world’s population.
‘Cis’ is not a neutral term, it is forces everyone to have a gender identity.
’Cis’ assumes everyone is a believer. Yet, there are large swathes of the population, who if you sat down and explained the concept of gender identity, reject it.
So, how meaningful is the word ‘cis’ again?
Firstly, it forces female people to be grouped with male people who were mistakenly described as female at birth.
Secondly, it actively mischaracterises people as being believers in the concept of gender identity.
But, hey apparently if you explain it in just the right way, everyone thinks it makes sense!