Who is saying this part?
Asking for an open device does not mean supporting malicious hacking of others. This is the single biggest false equivalence used by Apple and the rest of the industry to keep a closed ecosystem and restrict users' control over stuff they paid for. And people continue perpetuating it for some reason.
We're on the same side here. I daily a Pixel with LineageOS and root.
If I run software the OEM didn't authorize on a phone that I own and know the password for, that might be described as a "hack". Unless you're one of the horrible people trying to push OS-level DRM on everything, my doing that is a positive or neutral thing.
If a third party gets software that I didn't authorize to run on a phone that I own by tricking me into opening a malicious PDF, that's also a "hack". Almost everyone considers that a bad thing.
One does not imply the other.