This has nothing to do with scapegoating, the US military literally attacked european infrastructure this week
A former Polish Minister of Defense posted "Thankyou USA" to Twitter after the attack. Various US officials have made public statements since the start of 2022 stating the US wouldn't allow Nord Stream to go forward. The whole reason the pipelines were built was for Russia to cut out the Ukrainian/Polish middlemen (transit fees) involved in selling gas to Germany, so the Russians don't have any incentive to blow up their own pipeline.
I disagree that Russia has no incentive.
While the USA obviously has the means and more than zero motivation, I don’t see this type of infrastructure damage so close to allies as likely. Especially given the EU was already in the process of permanently ending the purchase of all Russian gas, not just these pipelines.
Russia, however, is looking at one never-opened pipeline and one already-offline pipeline, which is going to a bloc that has announced that it won’t pay as much as Russia is asking for its gas, won’t pay in the currency Russia is demanding, and wants to rapidly move away from Russian gas entirely, and which is currently sanctioning against Russia. Russia appears to believe that cutting off gas to Europe will end European support for Ukraine, and therefore has an obvious incentive to cut it off. Russia has incentives to make this look like it isn’t Russia’s fault, for the same reason anyone who might have done this would have had an incentive to hide their own identity.
Russia had already done the former by basically "turning off the tap", and already argued it wasn't their fault because they were willing to supply gas to Europe as long as Europe paid in Russian rubles. They were also using the gas supply for political leverage:
"release our frozen assets and we'll turn the gas back on" "pay in rubles and we'll turn the gas back on" "stop sending weapons to Ukraine and we'll turn the gas back on"
Now they physically CAN'T do any of those things, so this is a massive blow to what little bargaining power they hoped to retain through the winter. If there is any nation that is harmed by the physical destruction of these pipes, it's Russia.
https://web.archive.org/web/20220928201734/https://twitter.c...
(For scale, I doubt any nation other than the USA itself cares about pissing off the state of Florida, while almost every nation cares about not pissing off the USA collectivity).