Don't know about your county but here buying does not come with taxes. All taxes paid are given back. Value added tax. Or what tax are you talking about?
That the company still hires people does not invalidate my claim that currently human labor is more expensive because of the taxes and social contributions.
If your arguments then shift to it does not need to have social contributions because it does not need those. then I would go further. A robot does not need to do anything for humanity and companies can put robot waste directly into the environment. Put pollution's into the air as it does not need it too.