What happened to officer friendly: African American or White

In elementary schools all across these United States police officers would go to tell children of every race that they can count on them to serve and protect! How times and years has changed and now they are trained at the police academy to see certain race mainly Black and Latino as trouble makers! What happened to the time when children of every race can go to an police officer certain that they will help them and won't cause them harm! Now African Americans fear the Police with good reason! With recent killings of unarmed Black folk men and women we as a race no longer trust them! We black and Latino folk have to watch ourselves when pulled over for anything! Until the police start policing themselves we as an race of black and Latino will still have that distrust!