Originally Posted by
Pantz
It would be wrong to use "they" in the context the OP is arguing about.
Example:
When I tell someone a joke, they laugh.
In the example above, using "they" is correct since someone doesn't refer to a specific person. It can refer to any one person just not a specific one.
When I tell Jane a joke, she laughs.
In the example above, it is wrong to use "they" since i am specifically referring to Jane.
If I were to use the OP's name as an example,
Kimmy Dee tells a lot of funny jokes. She is a funny person.
It is wrong to use "they" in that context (even the singular they). And the English language doesn't have any word to replace he/she as a genderless term. And as someone said, using "it" is definitely worse.