> Corporations tend not to mind if you take away a business strategy of theirs, as long as you take it away from everybody else at the same time.

Not so if it is the only way for the business model to be profitable. More generally, this argument assumes that there is a fixed profit to the business, and the only thing to compete for is a bigger share of that fixed profit. The reality is that corporations are amenable to increasing the profit all around so long as they get part of it, and don't particularly care who gets exploited in the process. Conversely, they do tend to protest when the pool is reduced, even if it affects their competitors similarly.