They still are.
> These days they seem to just repeat hyper-partisan viewpoints ad infintum
Their involvement against broad interpretation of the CFAA in Van Buren v. U.S. doesn't seem hyperpartisan.
Neither does their action in ACLU v. Clearview AI
Neither does Nashville Community Bail Fund v. Gentry
Nor it's involvement in Georgia v. Public.Resource.Org
Sure, right now one party is more actively using the power of government against the rights that the ACLU has always defended, which has a lot do with party ideology (which in both parties have shifted over time so that one aligns morr with and one more against ACLU's long-held positions than used to be the case) and a lot to do with control of the executive branch of government (both federally and in states), without which you can't usually take the kind of government actions that the ACLU defends against.