Our new European party can unite Britain’s feuding Remainers and Leavers – by Yanis Varoufakis, Benoit Hamon (Generation-s), Luigi de Magistris (mayor of Naples), Rasmus Nordqvist (Alternativet); Rui Tavares, former MEP from Portugal (Livre); & Agnieszka Dziemianowicz-Bąk (Razem), op-ed in The Guardian