Attal's comment sounds like a sincere promise to drop out of three man races where Macronists came third, and if that indeed materialises then like, sorry, but you have to be a real sensationalist to claim RN can transform that 34% into 51%.
The French voting system is garbage. Two-round system where the second round can have 3 candidates? The two-round system already sucks, that just makes it worse.