While this might be true to an extent, the same can be said for any hero and their fan base. The Genji player community and their dislike for any support that can defend themselves or the “I need healing” stereotype is no better in that regard.
Furthermore, I doubt the “rest of the community” as a whole is so united and monotonous that they all think sym players who view her as a sassy queen are cringey. So while this might be your opinion, I doubt that it’s shared.
Most of it comes down to the fact that sym started out with an auto lock and that she has turrets. Because of those two things, she’ll forever be seen as “low skill” or “OP” somehow