Leftist parts of society looked up to USSR a lot, and a lot of humanities professors, teachers all over the world were left-leaning, and promoted these books as Russian culture.
This is one factor, and doesn't explain the whole thing, of course.
See: https://news.ycombinator.com/item?id=48673777. Neither our family nor I ever leaned towards the Party or any form of Leftism, but books are always kosher in our culture.
Do you have any sources for that? I'd like to read about it.
so do the other literary traditions I guess. What's so special about Russian. It seems as if the interest in Russian literature comes at the expense of the others.
So the question really is how does one find out about classic writing overall? Outside of school?
My liberal arts classes in college didn't involve Russian lit either. My freshman year English I and II classes were very unserious, we read Philip K Dick and a (somewhat distasteful) book by the current governor of Maryland. I could have taken a Russian lit class but instead decided on Appalachian studies which was surprisingly interesting and probably helped shaped some of my politics. I did read A Day in the Life while I was taking summer classes. Admittedly, I was on Adderall at the time which led to me reading at a rate that matched when I was a kid and was tearing through books faster than I could get to the library. I listen to a lot of audiobooks now and miss when I had the attention span to actually crack a book (or at least use a kindle). I've got a copy of Crime and Punishment in my queue but I've been reluctant to start it.
Less famous authors? Everything you say and more - again, just like any other books and author.