www.theguardian.com/lifeandstyle/2021/feb/09/kink-anthology-book-fear-shame
"In the meantime, despite its increasing visibility on social media and dating apps, kink is still generally thought to be unfit for the public eye. Unfit for children, especially, as in the recurring argument that kinky attire should not be visible at Pride parades, which echoes the old, bad argument that any signs of queerness should be kept out of sight of minors. But consider what it might do to a person, whether child or adult, to primarily see one’s sexual desires represented in the flattened form of a punchline or stock villain. To see and hear, in the books and shows and movies that can constitute much of our experience of the world, that one either doesn’t exist, or shouldn’t."
The 'k' are borrowing language from the lgb to push for more visibility, even wrt children.
Honestly, do what you like - with, or without, consenting adults in private - I don't care. But I do not consent to being part of it if you bring it into public life. This determination to get children involved, as if it's good for them, is a huge red flag.
This is one reason I can't stand the queer theory approach of blurring, or transgressing, boundaries. Yes, some boundaries have been bad and needed challenging, but others are there for very good reasons.