Because Google has set things be up so that they have no legal responsibility & even if they do it's an enormous legal mountain to climb to a) prove it and b) get any kind of reasonable recompense out of them.
Currently they have all the benefits of their monopoly with none of the responsibility which is exactly the way they like it.
They're a frequent target of rhetoric and legislation by the republicans. Granted, nothing comes of it because the fundamental issue they have is that reality has a liberal bias.
Currently they have all the benefits of their monopoly with none of the responsibility which is exactly the way they like it.