What about it? If it's output is generated by the manipulation of tensors and weights, it doesn't belong in my browser. It's not there to because I need to browse, it's there because I want to read content that is not in a language that the content provider has supported for me. I could feed those network responses right into a separate, non-browser app and have it translate stuff for me, if I wanted. Why should I be required to download and ignore your translation feature, when I could just as easily not have it included in the first place?

And, if I'm being honest, "translation" is the only feature I would even consider splitting the builds for. At least in that feature I can see why a "default" version of the browser might benefit more people than not by including it. But that doesn't mean that a "clean" version shouldn't be provided. Build the core app, and then include as many plugins as you think "average users" will benefit from in the "default" version. I don't mind being the minority, I just don't think it's inappropriate to ask for only what I need instead of "all the bullshit you want to force me to have".