So, Google does a bunch of good work and people choose to use their service. The US is bankrupt and the economy is screwed. And the congress is spending time persecuting a successful company. BTW, Google isn't the only one. See: Gibson guitars. It doesn't surprise me that people don't want to do business in the US anymore.
Congress is spending time investigating whether this company has become so successful that it is a defacto a monopoly and has abused its position. These two questions are not settled.
Gibson was investigated along with other companies for price-fixing. That's more collusion / cartel stuff, but it also falls under anti-trust. The word "trust" is not an accident. When you do good work and capture the lion's share of a market, you are then subject to a much higher standard than otherwise. Even little things you do can kill whole markets.
It's not pretty, and I haven't made up my own mind. But so far this investigation does not appear to be frivolous or arbitrary.
Actually, the "trust" word in "antitrust" _is_ an accident :)
It came about because in the late 19th century it was still forbidden to one company to have business in more than one US state, and even to own stock in companies in other states, so very complicated arrangements had to be created to have a national "corporation" - these arrangements were called "trusts", as the Standard Oil Trusts, which was probably the first one and for sure the most famous (or infamous).
Later, the law was changed to allow the modern corporation and trusts were obsoleted.
