[A. Pole]

This has virtually no basis in reality. Pogroms, state sponsored and otherwise, took place not just in the Ukraine but all over the Pale of Settlement (Lithuania, Latvia, Russia, Belarus, Ukraine, Poland) into which Jews had been herded by Russia, and particularly in Belarus, Russia, Latvia, and Lithuania.

You got it upside down. Jews were not "hearded" into the Pale. The Pale which was acquired by Russia from Poland.

Russia like Scandinavian countries, United Kingdom and numerous other countries did not allow Jewish emmigration. Only in the XIX century Jews from conquered Polish territory were allowed to immigrate to Russia proper (which was much more attractive). But this immigration was limited until Bolshevik Revolution.

Ukraninian peasants and their descendants have long memory of their serfdom and until now there is a lot of resentment against "Polish pany and their overseers".

[RussianConservative]

As a point of fact, no ethnic group allowed (except Russians/Ukrainians) free immigration right within Russia. Only Germans...Volga Germans allowed immigrate in, and that was because they come and build factories. This was done for socio and economic reason.