Rubio announces campaign to 'dismantle' International Criminal Court 8 days ago
There are a lot of people who are voting purely on the issue of Israel
In the most recent elections many Green party members ran specifically on the pro-Palestine side of the issue.
And while Israel is a small country, the world population of pro-Palestinians, and its influx and influence on the UK is not small. So these are, at least in part, proxy votes on other issues.