This is the point that supporters of de-platforming fail to recognise. They preach "Build your own platform" yet they still persist to de-platform until the target cannot be de-platformed off the internet.

After all their efforts, Gab is still alive since they are self-hosted and once Parler is taken off of AWS, they will open more Gab accounts.

I can only see that it will either lead to Gab receiving a wave of new users from Parler or these ex-Parler users will start creating encrypted group chats on Telegram or Signal which also cannot be taken down.