Trading is about making money, trading money, the vast majority of business entities manipulate, exploit situations,nations individuals, to make money shorting also cheapens a security to price levels which institutions and other investors find presumably? even more attractive fundamentally, enabling them to pound cost average their investments, giving joe public a presumably better return over the errr, longer term?
There are plenty of patriotic institutional big wads who will eventually come onto the bloodied streets and start mopping up all over again.
Capitalism in the west is all about making money, we have to learn to master that, to do our bit for our country, so its ok to be net short to make money, because eventually it flows back in one direct or eventual indirect way.