Show me a law, any law that states I can't provide a product or a service, because as a result of it somebody else's product or service will no longer be needed. You're spouting nonsense.
And quit trying to point at IE and say it's the same. As I described above, they're not. Microsoft caught flack for trying to buy off the vendors in order to control the retail market. It had absolutely nothing to do with "interreliant" markets.
Some people seem to magically pull laws out of thin air based on their perceived notion of what's fair and what's not. And the mention of Microsoft seems to double the numbers.