You took the words out of my mouth. It's been like this since Occupy Wall Street, which was a massive success. That's also when you first saw the SJW-type schtick inside these crowds and at rallies. That being said, the social justice isn't all inorganic, just the inception. It's kind of like infecting a few people with a virus and having it spread, ideas can kind of be like a virus too. The left is the most susceptible when it comes to this kind of psyop because of their trait-openness. It also has the benefit of the cluster-b types latching onto this sort of ideology and using it to satisfy their ego and emotional needs. The fact that this ideology has been so prevalent and spread through corporate America could also be a naural progression or another extension of the original psyop; it's a pretty big stick to beat people with and you're more likely to get blind obedience from the narcs who feed off the attention of being a lgbtqpoc, but also people are afraid to speak out against it which tends to erode social trust within the lower echelons of the organization.
edit: and there's a lot to say about how advertising has latched onto this movement as well, is it a natural progression or is it merely a means of reinforcing the behaviour? It's hard to say but the ones most succeptible to advertising in the first place will be the same ones most succeptible to the psyop.