I don't think Dawn feels entitled because she has kids, and I don't think she has more kids than she can take care of. She could obviously make life easier for them if she won the money and it gives her a lot of motivation. She agreed to vote Brenda out because that was the best strategic move. Brenda allowed the others to see their families, instead of her bff Dawn, because that was the best strategic move. Brenda said she was acting "nice" this time as a strategic move.
I hate all Dawns weeping and I actually liked Brenda this time around, most of the time, but the reaction seems way out of whack. If it had been reversed would you have been as mad at Brenda for voting for Dawn? I seriously doubt it.