If the US was turning on the EU because they know they can't win

You are saying that as if the US is betraying the EU. Russia had extreme leverage over Europe, in particular Germany. German citizens were beginning to protest against their own government to open the pipelines back up. The US (and probably German leadership) doesn't want any European countries folding to Russia pressure.

If the pipeline is destroyed, all of the leverage is gone. European citizens are now permanently screwed for the winter. More importantly though they can no longer give into Russian pressure to make it better.

Hell, if the US did this, they probably had buy in from Germany and a lot of the EU leadership. I wouldn't even be surprised if Germany did it themselves.

If the US was turning on the EU because they know they can't win

You are saying that as if the US is betraying the EU. Russia had extreme leverage over Europe, in particular Germany. German citizens were beginning to protest against their own leadership to open the pipelines back up. The US (and probably German leadership) doesn't want any European countries folding to Russia pressure.

If the pipeline is destroyed, all of the leverage is gone. European citizens are now permanently screwed for the winter. More importantly though they can no longer give into Russian pressure to make it better.

Hell, if the US did this, they probably had buy in from Germany and a lot of the EU leadership.