This comment isn't helpful. Could you support it with instances of when they took action versus when they didn't? Currently, you only posted your opinion.
I can only post my opinion. Although I did join Parler and explored it this summer I haven't followed it closely or used it much. I did read their terms and conditions.
What I do know is that Facebook played a far larger role in the organization of the #stopthesteal demonstrations and the associated capitol security failures earlier this month but have received no sanctions.