the positive externalities of the first amendment

Thoreau:

If somebody were to interfere with [neo-Nazis'] free speech rights, then I would have to take their side on something. I would feel dirty, but I’d do it if necessary. I don’t mind that the ACLU is prepared, if necessary, to use my donations to fight for their right to free speech....I’m just delighted that the ACLU didn’t have to use a single cent of my money to fight for these pieces of trash. I feel cleaner not having to take their side. Here’s hoping that the ACLU will be able to continue not spending my donations on neo-Nazis. That would be a good thing for freedom, and, somewhat ironically, the best way to repudiate everything that the neo-Nazis stand for.