I agree with most of what you are saying... but disrespect for police has been a problem for a long time. It is more evident now because the second layer of enforcement fails to persecute those arrested for breaking the laws created by the third layer of government.
The state creates a law, passes the bill, law enforcement upholds that law (creating resentment) and then prosecutors and lawyers either do not prosecute or plea bargain away the severity of that offense.
Some of that disrespect is earned by the actions of the few, recent examples: the cop in San Antonio who shot a teen that was just eating a burger in his car because he thought the car was the same car which eluded him the day before, it wasn't and he was fired and is facing prosecution.... Fuel to the anti police fire, video of a motorcycle trying to out run police and crashes at 100mph and the cops own body cam shows him running to the person who crashed with his weapon drawn while you can hear other officers already at the crash say, hey are you alright... hey, hey, again adds fuel to the anti fire... From watching most body cams the first thing that is done once the individual is on the ground is a knee in the back and a physical effort to put cuffs os. (I do understand the need for the officers safety) In the video I posted where a person supposedly calls the local cops on a federal ATF agent it shows just how out of control thing get very quickly. These could go on and on as to why there is a real disrespect for officers currently by all walks, not just one demographic be it political or racial.
I am pro blue and support those who do the job with integrity and honor and truly do protect and serve. I have been pulled over for speeding and the first question is usually.. Do you know how fast you were going? I always just say "Yes Sir" but want to answer that question with a smart ass response...(secretly I have always wanted to use the Cheech and Chong line from Up In Smoke when asked for my license... "it's on the back bumper" ) If I were younger I would, but I know not to because it will only be worse for me... That is not respect on my part but it is avoiding confrontation, time and energy. It is a thankless job but still only deserves the respect earned by the individuals.