Nord Stream 2 doesn't matter for Russia. There are several alternative options (e.g. Nord Stream 1). The main reason Russians built it is to spend government money on top officials development companies. If Europe closes NS2, it's even better, let's build it to New Zealand.

The whole Nord Stream 2 thing is pathetic. Ex-German chancellor Shroeder is on its board of directors. And Germany kinda plays on Russian side here a little, doing nothing but supportive words. If they agree with Russia to split Poland again, I wouldn't be surprised.