Our current crop of work visas are are more for the purposes of statism and not market friendly, or we would not have issues with black market migrant labor participation.
from what little I know about visas, we have 3 basic flavors;

tourist
work
student

None of those are intended to benefit the government directly. As a matter of fact, the work visa is as market friendly as you can get. Of course there are rules to follow and limitations to who and why a visa is issued but that is part of protecting the citizens of this country.

The reason we have black market illegal labor is the penalties for utilizing this type of labor is not great enough to dissuade those that use it. That is as market friendly as you will ever get.

Again, you need to use the proper definition of statism.

Socialism and Communism are generally considered to be statist governments. Capitolism (US) is quite the opposite.

At-will employment doctrine suggests that there is no guaranteed employment, in states that have at-will employment laws. Guaranteed employment is also not market friendly, since it does not allow for changing market conditions.
of course there is no guaranteed employment. that is what the socialists tried..and failed at doing.

Any tourism would be incidental to the legal right to work in our form of statism.
tourism? where does this come in to the formula?