Well it is not a big surprise is it? Many folks are prejudiced against TG, especially those TG who do not try to blend in - there is a clash of gender that unsettles people.
But the bright side is that there are accepting GGs today who a few years ago would have said exactly what your wife said. People can change if they want to.
What you have discovered is where your wife stands on the subject today, ignorant of the facts. It is not necessarily where she will be in 5 years time although this is not an auspicious beginning.
Still it is your choice as the person who knows your wife best to decide whether to sacrifice your feminine self to remaining in the closet or jeopardize your relationship by revealing your secret which you now know will trigger an unsympathetic prejudiced response.
Gauging the depths of her prejudice should really be your aim. The more entrenched her feelings are the less likely she will be able to overcome them. Try and find other opportunities to test her views then you will know if you stand a fighting chance.
