Only 54% of remainers would be comfortable lunching with someone who supported Leave, falling to just 37% with someone who opposes admitting transwomen to women’s refuge centres
It doesn't actually say this.
"Left leaning respondents were most likely to censor their critical perspectives towards transgender issues. Only 37% of respondents said they would feel comfortable lunching with someone who opposed admitting trans women to women's refuge centres"
It doesn't say this either. I've quoted the relevant paragraphs from the original report here:
1. Self-censorship is even greater when it comes to sharing political beliefs with colleagues. For current SSH faculty (mainly Remain-supporting), only 3 in 10 think a Leave-supporter would be comfortable expressing their beliefs to colleagues, whereas 9 in 10 (86%) feel a Remain-supporter would be. Among current Leave-supporting academics, just 3 in 10 (28%) say a Leaver would be comfortable expressing their views to colleagues.
2. Dissenting academics also face problems with collegiality, a key aspect of most academic workplaces. While 86% of those surveyed reported that they would be comfortable sitting next to a Remain supporter, this falls to 54% for sitting next to a Leave supporter and just 37% for lunching with someone who opposes admitting transwomen to women’s refuge centres. Gender-critical scholars may thus face more discrimination than conservatives and Leavers.
So out of all respondents ('of those surveyed'), whatever their views on Leave or Remain or any other political views, 37% didn't want to socialise with people who oppose admitting transwomen to women's refuge centres.