The future nation of California, whose independence campaign is supported by part-time YC partner and New Zealand citizen Peter Thiel.

I believe they may be making an oblique reference to the ACLU acting on behalf of immigrants this past weekend.

Of course, it's perfectly consistent to believe that the government of the United States of America does not sufficiently respect the civil liberties of non citizens.

Huh, what a weird point to make. If he were to actually look at the ACLU's mission, though, he'd see that there's nothing in it about only working to protect the rights of American citizens.