I could see that being the case in a scenario where all countries had strong labor protections. However, in practice globalism tends to result in jobs being exported from countries with strong protections to countries with weak protections. In that sense it is anti-labor.

In the case of bringing in workers; those workers are less likely to join unions or demand good working conditions since they are effectively indentured servants. That also is bad for labor.

Nothing stopping a country for regulating the offshore labor of companies based in it