The central long-term economic goal of the US in Europe has been to shift European energy consumption from Russia to the the US and allied producers. On the short term, sabotaging the pipelines prevents lifting the sanctions imposed on Europe (i.e. opening the pipelines) which would also tend to decrease profits on each LNG tanker.
> "The United States, the world's top natural gas producer, wants to send more liquefied natural gas (LNG) to Europe to help its allies break their dependence on Russian gas after Moscow invaded Ukraine on Feb. 24." (Jul 2022)
In addition, disabling Nordstream 2 is a stated US agenda, right from Biden:
> " US officials have made clear that they would move to suspend Nord Stream 2 if Russian President Vladimir Putin orders an invasion of Ukraine. They’ve been much less specific on how that would be accomplished. “I promise you, we’ll be able to do it,” Biden said Monday when pressed for more details. "
> "The United States, the world's top natural gas producer, wants to send more liquefied natural gas (LNG) to Europe to help its allies break their dependence on Russian gas after Moscow invaded Ukraine on Feb. 24." (Jul 2022)
https://www.marinelink.com/news/us-ship-lng-europe-498028
In addition, disabling Nordstream 2 is a stated US agenda, right from Biden:
> " US officials have made clear that they would move to suspend Nord Stream 2 if Russian President Vladimir Putin orders an invasion of Ukraine. They’ve been much less specific on how that would be accomplished. “I promise you, we’ll be able to do it,” Biden said Monday when pressed for more details. "
https://www.cnn.com/2022/02/08/business/nord-stream-2-german...