I agree completely that it happens here, both with private action (i.e., striking workers blockading nonunion replacement workers), and by enlisting government to do the dirty work (cab unions getting city governments to prohibit Uber or Lift, state occupational licensing requirements that have nothing to do with consumer protection and everything to do with building a moat against competition, idiotic protectionist tariffs that deny consumers the right to buy from whomever offers the best deal, and any number of examples of special interest legislation). I would guess that it happens everywhere when government has the power to regulate economic activity and politicians have the economic incentives to use that power corruptly to enrich those with political connections.
As to whether or not it SHOULD happen, whether or not it is morally acceptable, is a completely different question than whether it does happen. And I have no problem expressing my view that it is wrong. In my opinion, human liberty of all types, whether political or economic, is worth defending wherever it is threatened, whether the issue is oppression of women in Saudi Arabia, human sex trafficking in Asia, or denial of economic freedom to consumers in Mexico OR in the United States. When you hear that 14 year old girls are forced into sex slavery by ISIS in Iraq, do you say “none of my business”? And YES, I realize that forcing tourists to use taxis is hardly equivalent to forcing young girls into sex slavery, but both are just different forms of attacks on human liberty, and if I have to draw the line of just how minor the interference with freedom has to be for me to ignore it, that’s a line I don’t feel comfortable drawing. YVMV.