The problem here is that only one or two of their business lines actually make money. Everything else simply strengthens network effects and gives them optional

The problem here is that only one or two of their business lines actually make money. Everything else simply strengthens network effects and gives them optionality for new businesses. It would be hard to break up Google and say: you get to provide search for the US and another company has to do it for Europe. While that may be in the interest of Europe, it's of less interest to the US.