otaku_emmy said:
... making a word in to something it's not...
My exposure to the term "trap" is limited to Japanese media, so of course it's synonymous with Otoko no ko (男の娘, not 男の子). Given the nature of this site, even if we keep the tag as "trap", I would want it to be defined as 男の娘 (which I believe is how it is being used here).

I have no idea how it's used in the US, so I have no idea how reasonable it may be to want to change it.

I would want to avoid changing it because of it's use in blacklists. Although it wouldn't be impossible to update all the blacklists, it would be a slow operation on a large database and may even need to be split into multiple queries to avoid downtime or timeouts.