Why do they hate them?
Only one example I remember. I was going down a residential street to a midblock through street, usually I wouldn't expect any other cars. I pull up and find my self 6 cars back behind a Waymo to turn. And waited. The Waymo would just not turn whereas all the humans would have. The street has relatively constant traffic.
The only thing I can think of is that people are annoyed by them going the speed limit. Some streets in Chandler are 45 and I swear everyone is trying to go 60, so I suppose people that people that want to be going well over all the time get mad if they are stuck behind a Waymo. In Tempe the traffic tends to seem slower and more controlled so possibly they aren't as bothered by it.