Honestly I get the feeling that the best thing anyone can do is... To do nothing. People have tried going on TV many, many times and despite whether the programs were good or bad, or if they were sympathetic or unsympathetic it has made next to no difference in the way ABDLs are portrayed or thought of. We are a collection of freaks that can be put on TV to try to pop a rating, they have no interest in our community beyond that.
Just go about your regular daily life as normal. If you want people to see ABDL's as "normal" then the best way to do it by being "normal." Going on TV, public stunts and all that other stuff only serve to show people that we are not, in fact, "normal" which of course singles us out for ridicule and judgement.
Don't worry about what other people think of you and your fetish/kink/lifestyle or whatever you want to call it... Accept yourself and it doesn't matter what anyone else thinks. Your wife understood after you explained it to her, why does it matter what other people would think about it?