This isn't me being a luddite. Machinery has massive potential benefit to giving humans more free time to pursue things that fulfill them and the internet is an amazing tool for disseminating knowledge and increasing communication, whether it's about art, science, or philosophy.
But I realized today, this person is just kneading different textures of dough and this person is just whittling. How many bakers and carvers loved what they did because it stimulated their senses in ways that humans have evolved to be fulfilled by?
I have another theory (that probably aligns with disability theory in some way or other) that people with autism aren't actually more common now, it's just that they're sensitive to bright artificial light and loud noises and weird smells and foreign textures the world we live in is FULL of those. And what's more, we have ever increasing attentional expectations in the midst of all that!
You used to just have a weird uncle Joe who doesn't talk a whole lot but man he can knead dough aaaalll day or thresh wheat or maybe he just makes cute little wooden toy horses all weekend and we sell them at the market on Monday. And it's weird how aunt sally hums like that but damn her lace embroidery is WILD. (we can discuss antiquated gender expectations at a different time).
This isn't saying savantism/special abilities should be expected of neurodivergent people either, just that a looot of people probably flew entirely under the radar that way for a huge portion of human history and we're only noticing them now because we're progressively putting people in more and more noxious environments where even people who could've coped in those environments can no longer cope in this one.
And now we have a whole industry of creating stimulation for people who never would have needed it if we just hadn't created an entire world without naturally occurring stimulation that they're "expected" to live in after humans spent hundreds of thousands of years learning to make tools out of wood and stone and cook over open fires, and crush and mix their own grain to make breads.
And because all these things occur on a spectrum, we're seeing more people everyday who would have had no need for the stim industry now suddenly require it because we're progressively pushing more and more people who could previously have claimed one of those coveted "normal" labels into being "different" as we steadily push them to accept less and less stimulation in their daily lives and steadily push them to stretch their attention span more and more beyond what it ever evolved to do.
TLDR; the ASMR/Stimming industry is only necessary because we created a world where those stimuli no longer occur naturally that people who need them have to live in. The concept of a "disability" is very intimately intertwined with expectations as to what environment any given person "should" be able to thrive in.
I think your argument here speaks to and can be connected with a broader phenomenon that we can recognize even before capitalist relations became dominant. The relationship of religion as the opium of the masses that masks and justifies certain exploitative relations in society while at the same time providing benefit to the oppressed as spiritual respite and allowing them to feel good in spite of their material conditions.
Of course, the problem persists and is even worsened in capitalism along with massive alienation. Today in the West, the place of religion was largely taken by consumerism of various kinds and I think that your analysis of the stim industry fits into that nicely. As you also say, we shouldn't attack people engaging in this type of consumerism nor should we focus on individual decisions, but should understand the material conditions that create the need and seek to build a better society where such practices cease to be necessary.