re: I said, "My name is Patrick!"(police bodycam)

These overly dramatic comparisons to North Korea and other totalitarian regimes are hilarious.

These cops were performing their job by lawfully seeking to arrest a subject wanted for assault. The address matched. So they got out of their vehicles to assess whether or not there was someone present who matched the description. They thought Patrick resembled the subject and attempted to establish his identity. At this point he is not free to go. He is lawfully detained, but there is not yet cause to restrain him nor to arrest him. His initial reluctance will of course seem suspicious. Giving your first name does not establish identity. Of course if he gave the name of the wanted individual he would have been arrested immediately. With any other answer, the cops are duty bound to establish a greater degree of certainty than taking his word for it. At the very least there will be follow up questions by a lead officer.

The added factor is the cops are giving lawful commands (to step out of the car, just like on a traffic stop) and Patrick begins to not only NOT comply- which he is obligated to do, but begins doing the opposite. At this point the decision to restrain him is made regardless of what his true identity is. This is why they decide to use non lethal force to effect the arrest and taze him.

On a separate video (one not edited by Patrick's attorney), after he is cuffed you can hear his family members telling him to cooperate- even they see the wisdom of not being belligerent toward cops who have been unable to establish his identity. One or more of the family members can be heard understanding why the cops thought he resembled the guy they were looking for.

In my opinion the cops were aggressive, but not unlawful. It may be unwise for them to be aggressive, but it's not unlawful. When it comes to taking someone into custody, being aggressive results in quicker compliance. It worked in this case.