Want to choke off unions, do not base your economy on large companies. If every business is family owned (employ immediate family members only) or employ very few persons, unions would be hard pressed to form. Relationship between owner and worker is close. Once huge corporations form, with execs and lawyers etc etc, workers will naturally form unions to counter it (human nature).
“Want to choke off unions...”
How about we simply allow a little freedom to exist??? You are free to join a union, I am free to fire you for it. REAL simple.