There is no gender discrimination in Sikhi. So the question should really read: Why can Sikh women and men not Divorce?
Sikhism still does not give the right of divorce to all its adherents (both men and women) except in extreme circumstances, and even then since it is not legislated within Sikhism this is decided by Western or Hindu Courts. This is mentioned in many sources, and some quotes from Sikhs are as follows :- “In the case of broken marriage, divorce is not possible according to the Sikh religious tradition. The couple can, however, obtain a divorce under the Civil law of the land.” Of more concern is how Sikhs refuse to even consider divorce, leaving the spouse trapped in a loveless marriage. Take this example from the Sikh Spectrum Magazine :- When two souls become one, there is no duality between the way a husband and a wife think. Whatever they do, they do it together. A divorce, in such a case, is inconceivable. It is incredulous that anything calling itself “the modern religion” still does not emancipate women and give them independence. ANSWER No current religion has a separation rite.