You just don't have imagination. Google, just by itself, controls 89% of the traffic in the Internet. And we know that the government can get any information they want from them, without even asking too much. If you combine this with other major companies operating very close to the US government, it is probable that more than 95% of the web traffic outside China that is easily within reach of these sinister 3 letter organizations.

No. That isn't required at all. Fundamentally you lack understanding of how this happens. Yes, there is some port duplication. Yes it costs money. But it is not anywhere near as onerous as you assume.

https://en.wikipedia.org/wiki/Room_641A