Most of the immigrants from the Former Soviet Union arrived in the early 90s. At that time it was openly acknowledged that around 40% were not Jewish. Prime Minister Shamir certainly knew this but was happy to accept this demographic boost of white Europeans to swell the ranks of the settlers and help maintain a balance with the burgeoning Arab population. Simhon is not saying anything that isn't well known by those in power.
At least 19 killed, 250 rescued after trains derail in India (AP)
from the article: Treasury official under fire after attack on Russian-speaking immigrants