If it was a woman who had the warrant, why was the man holding the baby being harassed?
There are a significant percentage of Americans who think that it doesn't matter what a cop asks you, you are required to do whatever a cop says with a smile on your face.
Similarly, there are a significant percentage of Americans who will excuse practically any behavior from a cop and transfer the problems of the altercation onto the citizenry. That is, if the cop grabs you by the throat then that just wouldn't have happened if you listened to the cop in the first place and done as you were told, thus, it is your fault for the cops egregious behavior.
These people hold the citizenry to a "higher standard" than they do the person with the badge, gun, and power.
It is my belief that because the police have a badge and a gun and a license by the State to commit violence against the citizenry, that with this power SHOULD come responsibility and maturity. It is my belief that police should be "better" than the citizenry. It is my belief that police should be instantly fired whenever they demonstrate that they cannot handle this power and responsibility. This would lead to a police culture that simply would not tolerate this sort of behavior within the culture.
Instead, we have a police culture that views the citizenry as subjects to be ruled over and if you don't do what they say even if you believe they are wrong, then they can commit whatever acts of violence against you as they see fit on whatever whim they are on. ANd then, when caught committing unacceptable behavior the "system" will often swing into place to protect said cop. Then the argument somehow becomes a polite version of-- "Well, if cops aren't allowed to act like monsters at the slightest provocation then they can't possibly be expected to do their jobs..."
Of course, that argument is made using big fancy words and contrived examples and anecdotes, but at its core the argument is one that is riddled with logical fallacies. We accept behavior from cops that we don't accept from any other profession. Hell, even military people fighting in foreign countries have better protocols and restrictions when dealing with an enemy civilian populace than our own police have with dealing with Tax Paying Citizens of their own country.
NOTE: the above is my biased rant. I admit I did not watch the video. I'm just tired of these sorts of videos, i've seen them by the hundreds and am just not in the mood to watch now, will probably watch later.