Pretty sure UPS is well unionized

FWIW, UPS drivers are unionized.

Two days ago: UPS Violates Teamsters National Contract With Plan for Buyouts

United Parcel Service (UPS) is expected to unveil an illegal plan later this month to buyout full-time employees represented by the Teamsters, a corporate scheme that will directly violate the union’s national contract protecting 340,000 delivery workers.