The origins of the term undeniably are racist, yes, and I was also surprised that those using it weren't largely aware of the fact.
But it's also true that meanings unavoidably change over time, and the intent of what you say is also important.
The person you responded to isn't wrong - there's now a popular acronym people are using which is Race Inspired Cosmetic Enhancement
And yes it's a backronym. The pejorative term came first, and the acronym later, but it's certainly part of redefining and reclaiming the term to free it from its origins.
Like it or not, I think the term is very much here to stay.