WAUWATOSA, Wis. — Supportive Homecare Options owner Sally Sprenger shook her head Thursday as she watched about 75 Big Labor supporters participate in a Service Employees International Union-organized protest near her firm’s headquarters.

Seeing only two of her company’s nearly 1,200 employees taking part in the rally told her all she needed to know about SEIU’s motives.

“My employees are not interested in this,” Sprenger said as she stood across the street from the demonstration. “This is only about the union padding their bottom line.”