I would say it is a lie. But then why are they sent? Is it PR for ICE or something more sinister?

Mercosur is still far from being accepted.

The planned deal was announced on 28 June at the 2019 G20 Osaka summit after twenty years of negotiations.

https://en.wikipedia.org/wiki/EU–Mercosur_Partnership_Agreement

Why is this easy but Mercosur is difficult?

He believes the Armageddon will be ushered in by an antichrist-type figure who cultivates a fear of existential threats such as climate change, AI and nuclear war to amass inordinate power. The idea is this figure will convince people to do everything they can to avoid something like a third world war, including accepting a one-world order charged with protecting everyone from the apocalypse that implements a complete restriction of technological progress. In his mind, this is already happening.

https://www.theguardian.com/us-news/2025/oct/10/peter-thiel-lectures-antichrist