Some people were saying the same thing about computers 30 or 40 years ago. Most of the gloom & doom did not come to fruition. Google, or any other cloud service provider, has a huge financial incentive to keep your data safe and private. Ultimately it's a personal choice. Paper files didn't disappear when the computer was popularized for example. Desktop apps won't disappear either. A company that simply chooses to offer a service that some people do want is not EVIL in my opinion.