Nope.
A hybrid is a hybrid permanently. Even if some people don't realize it was a hybrid, it still is because it's not the original natural species.
Sorry, but guess what, it doesn't matter how much you argue about the situation, many people will not purchase from hybrid owners (and many people will check). I for one, will avoid purchasing even a 'pure' bloodline from a breeder with hybrids (that they bred or are breeding). I don't trust their stock, unless I know them well personally.