If a Hindu marries a Sikh, no eyebrows are raised and no breast is beaten as to what would be the religion of the child to be born of such a wedlock. Same is the case when a Sikh marries a Hindu. I do not think that any Sikh objects when a Sikh marries a Christian.
In fact, I have attended a marriage where a Christian boy married a Sikh lady. No eyebrows were raised nor any breasts were beaten. A Christian boy who was son of my lady colleague married a Punjabi Hindu lady and nothing happened.
In fact these inter-marriages are considered personal matters, hardly worth noticing. Christians, Sikhs and Hindus do not object.
If a Muslim marries a Christian, again there is no object from anybody. I have seen that even when a Sikh marries a Muslim, no eyebrows are raised.
However, if a Hindu girl marries a Muslim boy then cries of love Jihad are raised. Why should this be so? In fact, I suggest that there should be no religion and all the religions should be banned. Then we would have no more rioting, no more massacres and no more genocides.