Murmansk is north of St Petersburg and obviously there’s hundreds of miles of Russian coast between Sevastopol and Sochi, but also icebreakers exist?
You’re right about long term terminal navy brain, I found this interesting 30 year old article “The Historic Russian Drive for a Warm Water Port: Anatomy of a Geopolitical Myth”
https://www.jstor.org/stable/44642451
The article concludes
The evidence for this is really poor, the entire field of the hormonal theory of sexuality (and gender) is garbage
There’s lots of good literature on transmedicalism
Anyway someone who subscribed to that theory would say that a micropenis would be consistent with low fetal testerone and this story would be readily believable by them - far more than a trans woman who was born with a macropenis.