From the article: "A common retort to the claim that union labor drives up costs is that other countries, especially in Europe, have both high union participation and lower project costs. But it is widely recognized in the industry that unions increase project labor costs by 20 to 25 percent on average in the U.S."

The article spends alot of steam making an argument that unions drive up costs, then proffers data that shows it's not a solid argument, then just kind of waives it away by saying their argument is "widely recognized" to be true.

This article is idealogical drivel published by Peter Thiel.