littlebabyjesus
one of Maxwell's demons
There are other views of this. In the elections since 1974, the party of government has also had the largest number of seats in England/Wales. But what other effects have there been on politics of a strongly anti-Tory Scotland? It is really hard to produce meaningful counter-factual history. A purely English or English/Welsh Labour party would have been different from the one that could rely on Scottish seats, and that could have taken it in different directions - even taken it leftwards.