It's interesting that I can't find any evidence of this. There are several Lebanon, PA groups on Facebook. None of them that I looked at mentioned any hatred get-togethers. One did mention an Easter Egg Hunt, but since they included "God is Great" in their ad I'm sure they are not demonrat related.
Of course, I admit that some info on this alleged protest may exist and I just missed it; however, considering the amount of lies that DUmmies fabricate, I believe that, using Occam's Razor, it would be safe to say this probably only happened in the DUmmie's vast wasteland of a brain.
Edited to add: I was looking again at one of the Lebanon, PA groups on FB. The Easter egg hunt’s tag lines looks to be “God is Great and so are you”. Can you imagine the tag line for a lefty get-together? Maybe it would be something like “Hate is great and I hate you (unless you’re an evil, anti-American dem automaton/minion like me and even then I’ll probably still hate you unless you walk in perfect lockstep with the Party overlords)”.