So which knife makers are serializing their kitchen knives so they can be traced back in case of a crime? How many knives come with a GPS tracking its position? Well too expensive, what about an Airtag. No? By your roundabout logic this qualifies as “deliberately working on systems that defeat law enforcements efforts”. It’s an absurd argument.

To actually do any crime with GrapheneOS you would also need at least a VPN and basic understanding of operational security. Just as you would need a lot more than just a knife and car to be a successful criminal.

A Pixel phone with GrapheneOS is not some magic device that let's you do crime without immunity, but that’s the story they want to sell you.