It highlights the hypocrisy at the centre of the UKs policy towards Israel. The hand wringing and pledges to make a hollow gesture if Israel don't stop murdering babies in 6 months time. All the while using British military equipment and personnel to observe the genocide for Israel and selling Israel the bombs and bullets to do it.
If you can measure them individually and count them they're plural, if they're more figurative or impossible (or at least impractical) to count they're singular:
Yeah, where do you get off making out Stalin was the bad guy? Don't you know FDR was mean to an old person once?