What would the global response be to a nation becoming libertarian socialist/anarchist?

I’m trying to come up with realistic reactions from places like the EU, U.K, U.S , China and the other nominally Socialist countries over a nation with widespread support adopting non-state socialism. I’d assume the first reaction would be to try and destabilise the movement covertly or “sabotage” the progress so it ends at social democracy like with Weimar Germany.