True so some time after the Arroyo incident, the brotherhood would have taken vertibird tech from the enclave after the chosen one took them down for the first time.
This assumes the writers for the show give two shits about the lore. They might only use the lore as set dressing for generic post apocalyptic trash.
No one who wants Trump will change their minds to Biden, there is no point in even trying for their votes. The youth vote, the Muslim vote, the African American vote are needed to win and nothing turns off those three groups like supporting the crushing of a powerless group by a larger technologically superior force supported by your tax dollars.