Most people don't pick up the bill. Anyone net tax-negative does not pick up the bill. Facebook definitely pays more tax than me, both as a corporation and from all the employees they employ.
The public debt, obviously.
> If I stop working and don't pay tax, I didn't rob you.
Depends if you have income from capital.
> Me paying less tax doesn't rob you.
Depends on the tax code.
> Stupid spending of your taxes on things you don't need or want robs you.
Fair.
The argument comes down to the "fairness" of society. What level of taxation is "fair"? There's probably not a single right answer.
However, there are answers that result somewhat deterministically in rising inequality. So for those of us who don't want to live in a highly inequitable society, there is a "more right" answer.
Now, I'm sure other people (presumably people who are doing well under high inequality) would think the "right answer" is to increase inequality as much as possible.
Personally, I don't think that kind of society would be very nice to live in.
The main thing is choice, and that will always result in different outcomes. A violinist will probably end up with less money in her life than a stockbroker ends up in his, but money is not the only measure of a life.
On that measure however, with the massive scale that certain companies can achieve, some people will have far more net worth than others. But that won't be because the others had anything taken from them. It'll be because massive value was supplied to some customers, or some value was supplied to millions of customers.