I would say one of the longest arcs of Star Trek is Sarek's initial discomfiture and/or disapproval with Spock's non-Vulcanism, which he gradually conquers. In that respect I'm very glad we got to see him in the films.
Spock being bullied by children doesn't really mean much to me, as children bullying children is, for better or worse, not exactly an uncommon phenomenon, and to my mind shouldn't be used as a representation of how adults might feel.
While there's obviously some anti-humanism sentiment during ENT and in the Nuverse, I'd like to think that by the time of TNG (and hopefully earlier), that's become a thing of the past for the most part. Heck, given the isolated incidents we see, we could be seeing exceptions rather than rules in any cse.