Everyone that uses gmail (or any other Google service) does so because it's better (in some way that we can't know) than the alternatives. The very fact that people have chosen to use it rather than those alternatives means that it has made their lives better.

And Google should pay their F-ing taxes. I do.

By all accounts, Google is paying the taxes they're legally obligated to. If you don't like the way those obligations play out, then you ought to be talking to your legislators, the ones who are architecting byzantine tax systems. Their efforts to control our behavior, pander to buy votes, etc., by giving preferential treatment to some, is what created the problem.