2020 NFL Sunday Ticket

If I subscribe to the 2020 NFL Sunday Ticket package, AND if during the first game the NFL Plays the Black National Anthem and everybody stands THEN they play the National Anthem and everybody takes a knee.. I WILL BE DONE WITH THE NFL PERIOD.. will I be able to cancel the subscription immediately or am I locked for the season?.. Might just be safe and not subscribe to the NFL Sunday Ticket at all for 2020 after doing so every year since 1995.. enough is enough..