Oh, Jim, how soon you forget..... 
The ship's name was decided during the last year of obama'a reign of abominations. It was one of Barky's many "up yours" to decent, God fearing Americans before he finally slithered out of office.
Remember how your hero, Barky lit up the White House in rainbow colors? 
To help keep up your brain tangles looser, I'll only note a few sources below for you to peruse - hopefully you'll notice or remember they're not all agenda driven and hidden behind a "tiny url" such as your usual offerings.
https://www.thenewamerican.com/usnews/item/23755-navy-ship-to-be-named-after-pederastic-rapist-harvey-milk
https://www.nytimes.com/2016/07/30/us/harvey-milk-navy-ship-gay-rights.html
https://m.washingtontimes.com/news/2016/aug/7/ray-mabus-names-navy-ship-for-harvey-milk-bypasses/
Please allow me to offer you a tiny morsel of advice Jimbo, be careful to keep your mind sharp by using your memory on a frequent basis or a family member may soon offer to take you on a road trip to Quebec. 
12/16/19 7:01 PM
