I used to think that, but over the years, in my cohort, the same group of people oppose any measures at wealth redistribution or anything that helps people who sell their labor.
Removing tax advantages of healthcare from employers? Oppose.
Removing exempt status or even raising the minimum salary under which an employer has to pay overtime? Oppose.
Lowering the cost of education? Oppose.
Parental or sick leave? Oppose.
Outlawing non competes? Oppose.
There's always some reason, which I believe to be a façade. The consistency and fervor with which they do not want labor to gain negotiating power is revealing. And, of course, always in support of tax cuts.