Here is where the factions stand on organized labor:
CDs: Collective action on the part of labor is a reasonable way to keep capitalists from becoming too powerful. It is the welfare of society as a whole that matters, not the accumulation of wealth by a fortunate few.
CLs: Ugh! Rugged individualism and entrepreneurship made America great. Unions are basically a conspiracy against property and innovation.
PBPs: The whole point of a union is to make it difficult for us to make money. They need to be crushed.
Reactionaries: Unions are OK, but mostly irrelevant. The real issues in this country are social, not economic.
The GOP position on unions is consequently the CL/PBP line, with plenty of toxic masculinity thrown in to distract individual union members from their economic self-interest.