The thing is, Bond isn’t an established character. They’ve been recast so many times that fan theories exist that they’re a Timelord (another “established character” that got people uppity when suggesting the same kinds of changes, though thankfully we’ve crossed that particular Rubicon, albeit roughly). Change is part of the character at this point, and extending that beyond the cis, white, and (problematically) hetero confines of its past provides greater opportunity for growth and improvement rather than languishing in a character that first hit screens 60 years ago and was penned even further back, with all the baggage that came with that.