Louis Brandeis, Senn v. Tile Layers Protective Union Local No 5…
“ Admittedly, it is to compel plaintiff to quit work as helper or title layer. Their purpose is not to establish on his jobs better wages, hours, or conditions. If permitted, plaintiff would employ union men and adhere to union requirements as to pay and hours. But, solely because he works, the unions refuse to allow him to unionize and carry on his business. By picketing, the unions would prevent him working on jobs he obtained from others and so destroy that business. ”
