A few posts I’ve read online have directed me to a form where you can submit an appeal to Facebook. I have tried doing this, but will then get the immediate response that Facebook will not be reviewing the decision to disable my account.
A post which recommends submitting an appeal also identities the automated message that I’ve been seeing as a sign that Facebook will not re-enable my account. It also says to only submit an appeal once, so I guess I probably should stop trying at this point.