Obvious as it may sound, people with authoritarian beliefs hiding behind free speech actually consider it as a weakness akin empathy. It allows losers like them to amplify their reach despite not being in power. They abandon their “free speech absolutist” postures the moment they think they are in power.
The ACLU are nationalist ideologues who don’t believe in anything. There’s no objective definition of “civil rights” or even “free speech”. They promote the wacky idea that money is speech and corporations are people. They’re only “free speech absolutists” for the rich or whatever the system tells them. They’re fash enablers.