Nations spy on each other, all nations spy on each other if they have the ability. This spying is NOT confined to adversaries but includes allies as well.
It has ALWAYS been this way and it will always be this way. Keep in mind that contrary to the liberals constant moaning about “our friends overseas”, nations have no friendships between them. All they share are interests and the way to look out for a nation to look after it’s own interest is to know what the other guy is up to at all times.
No argument from me on your points.
Ethically I wouldn’t do the same to my personal friends but I do understand the need for a more global perspective.
Personal friends can be well vetted - not so international alliances.
And I think it perfectly rational for other countries to protect their interests. I just dislike the inclination of the current US admin. to dis off US interests in apparent favor of a deceptive, falsified “global” view. I find that supremely arrogant.