I feel almost ashamed to suggest that we Brits are less tolerant than our continental neighbours but maybe that’s due to a comparative lack of space here rather than a difference in culture?
I have found it remarkable how European motorists tend to be so well-natured towards vulnerable cyclists compared to that experienced over here. Perhaps they find more important things to get wound up about?
I don't think that space is the issue (space per capita rather than overtaking space).