A slight lead in the polls and major, major dissatisfaction in both the Tories (all scum) and Labour ( some scum) in Westminster have people questioning it's role in Scottish people's lives. A back to back botched COVID response and Brexit will be enough to tip it in YES' favor. A new ref hasn't been called, yet, but the call will grow as the SNP wins more seats and the YES in polls continue to grow. If Westminster denies a ref, I really cannot see how it doesn't grow the YES vote.