I do not imagine that would help improve Mozilla’s image.

Or too late.

It would not help to overcome embargoes if said independent organization is established in California.

If the code is truly opensource, it isn't embargoed.

The only issue with Android is that it isn't really opensource - users expect the Google apps, and those are closed source.

The embargo in question (WeChat) made iOS untenable because it is a closed platform. Location is irrelevant.