There is really nothing you can do, as long as you know that yours is real nothing should really matter
i got my speedy monogram as a grad gift long before most of my friends new what louis is. well everyone i know has a fake one and they assume mine is fake too!
I personally like knowing mine is the real deal and could care less what others think. Just take pride in your bag being authentic and don't worry about the fakes being carried around you.
I wouldn't give a @#$% what others think. As long as you know it is the real thing.