I empathize with your frustration- being infantilized isn't fun. It can be frustrating when I say something but no one takes it seriously or acts as if I never spoke.
In regards to a new race being added...
The developers have been struggling with the two newer races (especially with hrothgars. They don't seem to know what to do with them. And viera can't even wear hats yet). They also have stated they likely will not being adding any new races. I do support Ivalice Moogles making an appearance in the game in one way or another way, though.

I don't know if I have any encouraging words- lalafell are often used as comic relief. There are short options in the game, but nothing to the extent of what lalafell have. I am unsure if you are open to advice so I will leave it at that for the time being.