[hnlmorg]

Investing doesn't mean you have to contribute to the thing you're investing in. Take investing in gold for example, you don't polish nor do anything else to the metal. You just buy a quantity of it and hope it goes up in value.

The problem with short selling is that you're actually borrowing.

That all said, I'm not saying I disagree with your point either. It is hard to make an ideological argument when this is really more just different shades of grey. Personally I'd say all investments are a form of gambling. Some investments are just riskier than others.