She did it because as a human being she has equal rights to sit where she likes in a public bus. Not doing so would allow bullies to get away with their game, as well as condone apartheid. And yes, in this case it would be exactly like the white people long ago in S.A. who expected the 'Coloureds' to sit in the back of the bus...even if it is a pregnant woman and the back is full. Utter stupidity. The Haredi men should take tablets to control their sexual hormones.
More than 2,000 migrants threaten to break out of Hungarian camp (Reuters)
from the article: Israeli woman refuses ultra-Orthodox dictate to move to back of bus