Adam Clarke on Genesis 34:17

Then will we take our daughter, and we will he gone - It is natural to suppose that the tribe of Hamor was very inconsiderable, else they would not have sought an alliance with the family of Jacob, and have come so readily into a painful, disgraceful measure, without having either the sanction of Divine authority or reason; for it does not appear that the sons of Jacob urged either. And they are threatened here that if they do not agree to be circumcised, Dinah shall be taken from them, and restored to her family; and this is probably what the Shechemites saw they had not power at present to prevent.