HRT and porn. It does parallel addiction. Though I can't speak to the specific reference to crack and the black population in the 80s, I do agree that the influence and behaviors surrounding HRT and gender ideology is similar to drug behavior. My disclaimer is that I currently have a sister who fell into prescription addiction (like, heavily, and with over 11 different ones), and I've also done work in prisons. "Euphoria" (such as gender euphoria) has origins in people describing how drugs effected them. People are currently chasing gender euphoria like what similarly happens with drugs. They're chasing the obtaining of external validation through fashion and beauty norms ("gender expression") and pronouns. To me, this type of behavior basically enables the addiction. It's similar to other drug behaviors, in which people who struggle with addiction will unconsciously attempt to seek validation and enablement for their usage or sometimes outright demand it from others.
"Gender euphoria" in male people who identify as trans mimics many sex addictions in that first it begins as a small thing like getting a sexual thrill from wearing women's skirts in private. Eventually this loses it's effect and there's an escalation of behavior, such as now they obtain "gender euphoria" from wearing women's skirts in public or posting images of oneself in them. This loses its effect over time, and then it becomes using bathrooms. Then going on estrogen. And so on.
In other cases though people describe "gender dysphoria" and HRT addiction comes from simply attempting to cope with feelings of distress through altering one's body and obtaining certain "affirming" remarks from people. Similar to people leaning too hard on the benzos to deal with anxiety or a person cutting to alleviate feelings of distress. It should be noted that many people in trans communities grew up as "emo kids" and experienced a wave of self-harm and eating disorder behaviors in middle school.
Finally, both drugs and gender ideology/HRT provide people with a sense of community. Establishing a sense of community in my opinion has become so hard for millenials and younger, partially due to spending more time online (which also impacts social skills and increases anxiety and body image issues) and partially because we were very targeted by media that placed emphasis on individualism and individual expression and much less on family and community. Especially by the fashion industry—most of the commercials intertwine "be you" with clothing and having style. Gender ideology and HRT is an interest shared by the status quo left, and a culture and feeling of community has been created around it.