Consumer privacy has been politicized as it entered the public consciousness. Parties have taken sides.
I don't see another choice for them. The populist authoritarian streak taking hold in many country's right wing parties goes against much of what the ACLU stands for.
When you have one party relentlessly gerrymandering districts to take away voting rights (mostly from minorities) and putting immigrants in cages separated from their parents, it's hard to support both sides. One side is violating basic rights as a matter of mainstream policy.
IMO populism is anti human rights. I think that's the reason ACLU is no longer neutral. They were totally fine with traditional conservative principles for many decades.
I don't see another choice for them. The populist authoritarian streak taking hold in many country's right wing parties goes against much of what the ACLU stands for.