I have no issues with who/whom, I/me and so forth. I grew up using them appropriately. I don't see the need to restructure sentences for folks who don't, especially. There is enough dumbing down going on already.

However, if you say your pronoun is He or She or They, there is no need to specify the other cases.

My 3rd person pronoun is They. I assume you know the objective pronoun is Them and the possessive one is Their. I don't see why some people have to specify them all. In fact, it's annoying, and smacks of down-dumbing.

On the other hand, I have had idiots try to use They as my 2nd person pronoun.

I know loads of people who have no clue what I just said. Sigh. Why can't Americans teach English the way the French teach French?