Xiaomi has not been sanctioned like Huawei. So it is made by TSMC on N3P.
The Huawei chips, made by SMIC, are so far behind they're not competitive at all with even Xiaomi's first generation chip.
Europe needs to acquire a nuclear arsenal that stands head-to-head with the Russian one quantitatively and independent from the U.S. or any other nation (including the French and British) for nuclear deterrence. This means many more European nations need to acquire a nuclear arsenal.
The frustrating part is that the U.S. doesn't want to give assurances whether it will come to Europe's aid if it were attacked, but at the same time doesn't want European nations to develop an independent nuclear capability. Many European nations (Poland, Finland, Sweden, Germany) are currently contemplating going nuclear. The U.S. is actively discouraging them to do so.
Reputation is a fickle thing, so difficult to build, and so easy to lose.
I'm pretty sure the Trump Administration has made this clear to the Russians through diplomatic channels. A Russian attack is therefore unlikely.
The NPT was only useful when the lines were clear and larger nations would come to the aid of smaller ones when they were attacked. That's no longer the case.