From the GSS 2010 onward (N = 7,886), the percentage of native-born Americans who belong to or have spouses who belong to labor unions is 13.1%. For foreign-born residents, the figure is 9.3%. Natives are thus over 40% more likely to be union members than immigrants are.
The AFL-CIO and Jeff Bezos are both big proponents of open borders. It’s obvious why Bezos is.
GSS variables used: UNION(1-3)(4), YEAR(2010-2018), BORN