Avira, where did she say “BT” background, she said “MO” background. “You have a right to your opinions, but not to your own facts”. Especially, Sephardim (as you are saying) do not have same prejudices as you do.
Serious question – what should be the shidduch. Historically, it used to be complimentary – chacham with ashir. Nowadays, the concept seems to be “same background” – “men and women are different enough”, probably due to divergence of communities. So, should a lawyer marry a lawyer – and then see each other and kids on Shabbat?