Scaramucci might want to remember 1. when Brexit happened and 2. who energised the covid madness/mandate that makes any comparisons nonsensical at this time.
It appears Scaramucci has developed the European philosophy - keep holding a referendum/vote until the desired result ensues.
He is correct though in that Brexit has not been great - the main reasons are due to the countless civil servants, parliamentarians (on all sides), and the rest of the 48% of reamoaners who, rather than come together and make leaving the EU a great success, were determined to obstruct and delay/challenge every minutiae they could. Some even stated they would rather the country fail than support Brexit.