For those unaware order 66 basically marked all Jedi as traitors to the Republic but palphatine told them if order 66 occurred leave anakin because due to anakins anger issues and other problems such as his mother dying and his wife being pregnant he knew he could manipulate him into turning to the dark side
Even in Movie form this is the biggest Betrayel i have ever witnessed (except for Sport in School where we had to turn against fellow Classmates that was just Brutal Dodgeball)
not really a betrayel by the clones they were ordered by order 66 that the jedi were traitors to the republic and were to be executed on sight they were following orders palpatine would have the blame for issuing the order.
