Do you think that these projects don't further the DoD's core objectives? The vast majority of such projects do contribute to the departments ability to wage war and build a competent force.
https://www.armytimes.com/news/your-army/2018/10/10/americas...
Conservatives believe that the State is not a proper substitute for mother + father family, but any measure strengthening the biological family is absolutely anathema in liberal circles. At some level your rhetorical question acknowledges this state of affairs.