Sure they do, and sure they are. But most people in functioning democracies with decent to good police forces understand that they're just the messengers and hate the politicians that came up with the policies instead.

The policies of politicians and the humanism of police are not the same thing. A new party in power will also not change the culture of the workforce of an established service overnight, such a thing takes time. Time that those politicians usually don't get in a functioning democracy, because in far less than a generation, another coalition of parties will be in the majority.