The first part of the story was pretty good and seemed to be setting the stage for some valuable suggestions. The rest of the story starting with "Let’s build the working world we want," disappoints.
You say, "let’s do it differently: let’s build work that works for us." That sounds great but is a marshmallow, there are no concrete suggestions.
It is possible to build inclusive systems. What did you do at "companies like Voiceflow and Spotify" to build "inclusive systems," what even is an inclusive system?
I don't believe "So much of the way we work is a choice." Much of the way we work is dictated by the company for whom we choose to work. Do you think that anyone below upper management at a large tech company can actually choose to change the way their team or group works without the approval of said upper management. The 90% work to the whims and dictates of the 10%. Voiceflow has what 20 or maybe 40 employees, Spotify has what 5,000. Gravity Payments as what maybe 100 or 200. What you are saying if I read between the lines is if you move to a small or tiny company you can change the culture and make it more "inclusive" whatever that means. Vote with your feet if you want to work in a different culture but it will come with a price. Precarity, I would not count on job security. Every thing has its price. Balance, compromise, optimization or robustness. Pick your beverage of choice. Even Adobe has tens of thousands of employees. I work for a company with around 40 employees and while I am the Chief Engineer and have a personal relationship with the CEO and the COO, it is still hard to change the parts of our culture that are broken.
TEK