From episode 123
3:06 We look at the marriage equality survey and examine what correlation there was between the No vote and religious affiliation, immigration status, education and ethnicity.
12:37 The factor that correlated most strongly with a No vote was religious affiliation. Being born overseas had only a slightly positive relationship with voting No. High household income was only slightly correlated with a YES vote and higher education levels had a slight but not remarkably positive relationship with voting YES. A closer look at each religion shows that Islam was the strongest indicator of a no vote.
From episode 97
28:04 How many refugees did Japan take in during 2016?