Reza Pahlavi, the son of Iran’s ousted Shah, has argued that any negotiations with the leadership in Tehran amount to “appeasement” and voiced hope that renewed street protests will topple it, AFP reports.

Pahlavi, 65, was speaking on a visit to Berlin, where he was greeted by some supporters but also bitter opponents — with one activist splashing a red liquid on him before being detained by police.

Pahlavi, addressing journalists, called on European governments that have stayed out of the US-Israeli war against Iran to take other steps, from expelling Iranian ambassadors to helping Iranian citizens access the blockaded internet.

“The whole narrative of ceasefire and negotiation is still based on thinking that … you’re going to deal with people who all of a sudden have become pragmatists,” said Pahlavi, who was visiting Germany after stops in Sweden and Italy.