The only reason why people say stuff like “gender is fluid” is because this commercial jingle serves the needs of private enterprises to sell more stuff. There is zero difference between this jingle and “Maybe she’s born with it, maybe it’s Maybelline.” Caitlyn Jenner, for instance, was the perfect example of a “she” who wasn’t born with “it” but purchased Maybelline instead. And the fluidity of gender allowed fluid markets to get a hefty amount of cash out of her to pay for the enjoyment of this set of jingles.
It’s ok to be a happy consumer as long as one understands that one is being nothing but an eager customer and absolutely nothing else whatsoever. You can’t possibly be more conformist than when you say “gender is fluid” and recite the rest of these slogans.