I’m sorry but your analysis is very nonsensical. You’re analyzing motives. But the sabotage already happened. It is not a matter of speculation whether someone will gain from it or not. If you make an argument that they have nothing to gain, well I don’t know what to tell you. It happened, and they delivered on their promises exactly. I provide a link below:
The video you sent is way out of date…
Joe Biden and Olaf Scholz were both committed to take Nord Stream 2 offline. So what happened? Germany simply took it offline as a form of sanction against Russia. This has already happened over half a year ago and has absolutely nothing to do with Nord Stream 1. Besides, why destroy a pipeline that isn’t in use anymore?
You talk as if motives don’t matter when looking at who the perpetrator is. But motives are very important when looking at suspects. Neither the US nor NATO benefit in any way by destroying Nord Stream 1. So why would they do it?