You're going to tell me next that you have a JSON interface instead. But that's a site-specific API that's designed for vendor lock-in. You're going to find that doesn't work and need to create a universal format. And now you have completely recreated the problem HTML was intended to solve originally.
All of this wasted effort that web Devs do doesn't come from nowhere. The people with slow browsers or accessibility needs are absorbing your productivity gains 1:1.