A lot of Russians left Russia to occupy Israel as Jews under the guise of wanting free land.
Ariel Sharon sensed something was amiss, but because he was Russian and feared for his own death by unnatural means he shrugged off the inevitable.
A lot of ‘maybe’ Russian Jews went to Israel for free land taken like candy from babies (the Palestinians).
Russians aren’t stupid. They lived under oppression for too long to be carrying that stupid label. They learned via oppression how to improvise, disguise and acquire what they needed and wanted to survive.
They knew there would be a cost. Nothing is ever free.