How can the petitioner establish domicile? According to the US State Department in Washington, DC (which oversees Embassies):
"The sponsors must have taken a credible combination of steps to make the US his immediate principal place of abode. Such steps might include finding US employment, locating a place to live, registering children in US schools and other indices of residence. The sponsor should also have made other arrangements to relinquish residence in the third country. It is not necessary for the sponsor to precede the sponsored family members to the US to re-establish residence and domicile provided that the sponsor has taken the type of concrete steps outlined above."
The bottom line is that, under the law, your father will have to move back to the US, to re-establish his domicile in the US, in order for you to complete your immigrant visa. If he is unwilling to move back to the US, you will have problems getting your visa issued. It is not the Embassy’s fault if you get denied your visa. They are just following the laws set by Congress.