How can google shift billions worth of patents from one country to another without having to pay taxes on this move? If I bought all their patents for $1 from

How can google shift billions worth of patents from one country to another without having to pay taxes on this move? If I bought all their patents for $1 from them, I'd have to pay a huge amount based on some estimated valuation as this is seen as massively undervalued = a gift. Are there tricks like moving a whole company from one country to another? I think it's way too easy to shift paper values around the globe which makes these kinds of insane tax saving tricks way too low risk. Imagine Ireland saying "we won't let you export this as some of this has security implications". This is deeply amoral and even if in the strict sense of the law it's obviously legal that does not mean one has to let them get away with it too easily.