Arpaio was a bigot and a blowhard. His anti-minority policies included being a hardcore birther. He was super estabishment, but what people don't realize is that the party in power is full of establishment politicians. Trump isn't one,but everyone on his team (aside from his kids) is. Hopefully the ouster of Arpaio was both anti-establishment and pro-human.
Arresting people without probable cause, hiding and destroying evidence and disregarding the orders of federal courts is illegal. Arizona Sheriff Joe Arpaio Failed To Investigate Over 400 Sex Crimes, Including Molestations Of Undocumented Children. 400 sex crimes Sheriff Joe has ignored. Many minors, some as young as 2 years old sexually assaulted.
Arpaio's loss had nothing to do with the establishment because he is about the exact polar opposite of the establishment. This has more to do with latino backlash over a law and order guy specifically addressing an illegal immigration problem. Seems Arizona is a good place to be if you are a criminal. The people own this one and deserve what they get.
With Trump in office, voters won't need a local sheriff to lay down the law. Instead, there will be federal policies and agents to work on illegal immigration. It is not uncommon for elected officials to be voted out of office after a brief time. In this case, Arpaio's time had come. He did a great service for his constituets but they were just ready for a change.