Do you think our military will be compromised or harmed in any way by the repeal? If so, is the anti-gay sentiment that pervasive and that integral within the military? Is homophobia accepted, encouraged and/or allowed by the upper brass and supervisors?
Any time there is a dramatic change there will be a time of protest and turmoil, to whatever degree. In the end, provided the change is integral to human nature (as opposed to social conditioning), things typically turn out for the better.