This is assuming that the lead supervising authority is the one in Ireland. Since facebook deals with data in all states, and doesn't make decisions about those

This is assuming that the lead supervising authority is the one in Ireland. Since facebook deals with data in all states, and doesn't make decisions about those data in Ireland (but in the US), it is not clear if Ireland is their sole LSA. https://iapp.org/news/a/is-it-possible-to-choose-your-lead-supervisory-authority-under-the-gdpr/ https://iapp.org/news/a/is-it-possible-to-choose-your-lead-s...