The G7 summit in Cornwall, U.K., was noteworthy for the cohesive vibe among member states, buttressed by their shared identity of being democracies. After four years of irrelevance wrought by the illiberal former U.S. President, Donald Trump, this club of rich, industrialized countries has got a new lease of life under his liberal successor, Joe Biden who believes that democracies should unite against authoritarian rials.