So, a „GDPR-hostile Google Analytics Opt-Out button, unless you change the defaults“

Yes, I see why your marketing sense told you to choose the untruthful version.

I'm using it in opt-in mode myself, and I'd hope most people would too. You'll see I recommend that in the docs too. The first step is getting site owners to give any opt-in or out facility at all, which is why I didn't make that the default. I'm sorry if you think that's untruthful. I'll probably change the default based on the feedback here.

If opt-in is the only legal option, why do you default to opt-out?

The feedback here is pretty clear that I choose the wrong option, so I'll probably change it. The default is obviously to not install it, which gives no opt in or out at all.

Please consider also I have "Do not track" option turned on in my browser preferences. This should signal that I will not consent and am willing to take the consequences: even if it means you serve a "text only" version of the site.