you are correct, there is more RoW immigration than EU immigration, but in the years leading up to the brexit vote it was nearly 50:50:
https://fullfact.org/immigration/eu-migration-and-uk/
i remain perfectly comfortable in my original assertion that there was an injustice in 7% of the worlds population occupying over/nearly/slightly-less-than half the net migration, as contrasted to the other 90% of the worlds population.
lol, "no real problem"? the regime for RoR immigration [is] punative compared for that of EU citizens under freedom of movement, and it has become more punitive as a response to increased pressure from eu immigration.