No, there was already a steady complaints against Anti-EU regulation from within Europe around the time Eurozone debt crisis introduced sweeping changes that ultimately centralized regulatory enforcement over sovereign interests of EU member states. I think anybody from Europe would know this is the focal point when anti-EU sentiments really ticked up.

There really isn't much of astro-turfing in non-EU parts of the world that would make little sense, your narrative might make more sense if there were any actual evidence or credibility behind the claims that non-EU states are engaged in anti-EU discourse that doesn't apply to them.

The complaints against EU is a lagging effect and what you see today is cumulative, one that all federated organization eventually face. LLMs have little to do with it and its just more visible as it is quite literally in global discourse