Haha, nice :)
According to bits and crumbles of information I found, the actual assembling seem to be happening in Europe, though the components are the coming from various sources, including China and (mostly) US.
I definitely see your point, though in my eyes, having phone designed in Poland and assembled in Europe is infinitely times better than an iPhone, which is designed in US, and assembled in China in extremely unclear work conditions, or Xiaomi which is 100% China. Especially if it is a product prioritizing conscious usage.
Wow, I was really sure Fairphone is assembled in Europe.