That aside, it is not really too much to ask that a company that does business in England abide by English law.
It's useful to read the terms of service:
All Google interactions are with the US entity: https://www.google.com/intl/en/policies/terms/ identify
The Services are provided by Google Inc. (“Google”), located at 1600 Amphitheatre Parkway, Mountain View, CA 94043, United States.
If you are a resident of or have your principal place of business in the US or Canada, this Statement is an agreement between you and Facebook, Inc. Otherwise, this Statement is an agreement between you and Facebook Ireland Limited. References to “us,” “we,” and “our” mean either Facebook, Inc. or Facebook Ireland Limited, as appropriate.But "does business in England" and "has a legal nexus in England" are two different things, depending on your definition of "does business". For instance, if I sell a service online, and someone from England buys it, that might count as "does business in England" but it doesn't make either me or the service subject to English law or jurisdiction.
Really, calling themselves an "Irish" company seems like tax evasion to me, if it's in name only, with none of the negative ramifications.
Edit: speaking with regard to Apple, though other companies are in the same boat.