activation lock on purchased iphone

I understand you will not unlock the phone, so do you recommend destroying the iPhone i bought from a guy online and report it to the police.

I don't see why you can't have a feature where I can request it unlocked via the device GIVEN you KNOW the email address and I don't

I mean $600 for a phone and it won't work, the police don't care and apple doesn;t so, what should i do?

How does one destroy a phone in an environmental way?