Easy now. I think "hate monger" is a little bit over the top.
For years umpires have been the necessary evil in the game of baseball. Technology has advanced enough that their role can be lessened.... and should be.
At the very least, dolts like Marty Foster, Doug Eddings, Joe West, et al should be held accountable for their deplorable actions. If MLB or the Umpires Union can't do it, then expect the fans to do it, in a verbal way.