That's why many come here, to use our welfare system, and commit fraud. It might be different in your area, but not in Glendale, which is a sizable city in the LA area. Note: Once upon a time, Glendale used to be a very conservative city.
As far as I can tell, Russians vote Republican, for example, the 56 ward in Philadelphia has the largest concentration of Russians in America, and that ward is the most Republican part of the city.
I don't doubt there are certain of those, like the Russians you point out, that vote Republican. That's great. Especially if their educated, that's even better. But, I'd be careful not to lump "all Russians" into that catagory.
The Armenian population (from former Soviet-bloc regions) in Glendale are a liberal based, welfare and medicare/medicaid sucking entity. They have destroyed that city.
So overall, merely due to education levels, Eastern Europeans should assimilate very well into American society.
Should, but not always. I would not make general assumptions because it's not always the case.
We need a break in immigration, period. This country is already too dense. Look at Los Angeles as a whole. Everyone from everywhere comes there, and the whole place is ready to explode. People of different ethicities are ready to kill each other out there. If there ever will be a civil war in this country, LA will be the flash point.