What you did is defend (and repeat) Hillary's attacks that Bernie is not a true Democrat.
I am simply explaining to you why to the more than 40% of Democratic primary voters who support Bernie Sanders as the best candidate to lead the Democratic party, this is both insulting and counterproductive.
It will likely turn out that I have to weigh my dislike of Hillary Clinton with my dislike of Trump or Cruz. Probably I will end up voting for Hillary Clinton, but this particularly insulting line of attack on Bernie supporters doesn't help this calculus.
If I were Hillary and cared about making sure Bernie voters support her in the general election, I would drop this attack. And, yes... Hillary is running to be president of the United States. She has far more responsibility to reach out to Bernie supporters for their support than Bernie supporters have to fall into line behind her should she win.
The idea that voters have an obligation to support candidates (rather than candidates having the obligation to reach out to voters) is really backwards.