@Pungent
I suspect a lot of the most vile intraparty divisiveness in email circles is coming from infiltration by members of the other party or even Russia. I saw it happen with anti-Trump groups infiltrated by supposed Bernie Bros, No one could have any discussion without them derailing it with posts that Bernie would have been better and scuttling any actual discussion, until most people abandoned the group.
@AlphaCentauri
Hard saying not knowing.
Perhaps it would be easier to determine if the candidate herself openly sought less division?