https://thegrio.com/2020/06/14/raysh...-cam-shooting/
in case you haven't seen the Brooks bodycam video
Did the cop offer to give the guy a ride home?
No, he repeatedly asked the guy to submit evidence against himself (for later trial).
The guy admitted drinking, then the cop asked him to take a portable breath test (PBT). Note, this test is not admissible for blood-alcohol content, only to determine the presence of alcohol. This is information the cop already had, but he is trained to build evidence for an eventual trial.
The guy offered to walk home.
No, the officer continued to ask the guy to submit evidence against himself.
The cops were not there to help. They were there to arrest & convict.
The guy was cooperative & compliant until the cops tried to grab him & lock him up.