Microsoft created a new ecosystem with Windows but some of their conduct favouring Internet Explorer was held to be a violation of the Sherman Antitrust Act. Apple and Google go further in favouring their own products that, like IE, weren't originally part of the OS. Google at least allow alternatives, but in some cases Apple doesn't even do that. So we come back to how much market influence is needed before the conduct counts as abusive. Europe tends to have a lower threshold than the US. I'd call it pro-consumer rather than anti-business. It's a similar situation with personal data as in the 'spyware in cars' thread, employment law and probably a load of other areas.