One of the greatest unspoken ironies of all this is how the First Amendment, which the ACLU lives for, would not last long after the 2A, which they hate with a passion, is ground into the dust. Of course, you could not convince them of that. Afterwards, it would be the great "I told you so".
Another irony is how the ACLU would be happy to see all of us stripped of our guns by agents of the state who would employ, tsk, tsk -- GUNS. Imagine that.