Short-sellers
are part of the free market. They are how the equation balances itself when trying to find the "true value" of a concern, or at least an approximation thereof.
Obviously the person who owns stock, or is set to earn billions when the share price reaches a certain level is going to be adversarial to someone whose actions result in the share price being depressed - even if that is the fair value.
> Large funds making public bets against a company have a material impact on that company's liquidity.
There are always bigger fish - and if the public bet is wrong, someone can, and will earn money at the funds' cost.
Edit: shareholders dislike shorts the same way employers dislike employees sharing salary information; it's a losing proposition for them, but a fair one.