It is not until you read the comments of the Daily Mail and similar US magazines that you discover that people do indeed hate members of the BRF and, as she is dating Harry, Meghan as well.
Hate is a living, breathing, passionate entity, intense and unhealthy in its nature.
Synonyms: loathe, detest, dislike greatly, abhor, abominate, despise,
execrate, feel aversion towards, feel revulsion towards, feel hostile
towards, be repelled by, be revolted by, regard with disgust, not be
able to bear/stand, be unable to stomach, find intolerable, shudder
at, recoil from, shrink from . . .
People that truly hate someone about whom they know little, have never met, and has never been seen to offend anyone, etc. are truly screwed up. There is no logic to their hatred and there is no reasoning with them. That Meghan should become a target of such hatred was only to be expected but 90% of people either don't know who or, I would speculate, care who she is, let alone that she could become royal by marriage.
Most normal people do not interact with "haters" and, on this forum, our moderators and administrators do an exceptional job of nipping any opening in the bud. The trick is to remember that they are not you and we on this forum are not like them.