Decentralised social media - In Australia they just passed a law so police can access your page to add,modify or delete data without a warrant, would decentralised social media solve this?

So in Australia a bill was just passed that will allow police to access your social media without a warrant, they will be able to add, modify or delete data as they will. At this point I'm about to just delete my social media as it isn't really worth having anymore. Im not doing anything wrong but the risks and violation of my privacy Is just becoming too high.

This is downright CCP level bullshit and is completely unacceptable so I'm here to ask if decentralised social media could possibly be the answer to this or does it exist?