Long overdue, to me.
Will it create a ripple effect in the military? Probably.
Did the integration of troops (during the Korean War, I believe), have ripple effects?
Sure.
Still there? (racial/gender etc)
Sure.
Some folks will never accept another gender/faith/ethnicity/sexual orientation of another. True in the military and out of the military.
Will the repeal of DADT wreak havoc on the troops? Well, the troops have spoken, and not so much.
I don’t always agree with the wars we’re fighting, but I’m never against the troops committed there. That’s what they do, and they are doing the work of heroes.
Yet I don’t care who those troops are: black/white, men/women, straight/not, religious/not. Still heroes.
Repeal of DADT is an American step forward.