First, I agree with you. The question, though, is...what? Sanctions, of course, though there are those who say they aren't very effective. I'll leave that to others to argue but there's a moral component to sanctions....we don't do business with criminals and thugs (And, yeah, I know that we actually do...a lot. But that's my point...we shouldn't.
Our best bet is to sanction the Swiss company building the Nord Stream 2 pipeline but that puts us at odds with Germany.
All to say "do something" might be a tough ask.