In the trans panic defense, there is still a victim alleged. (Wrongly) the man believes he is a victim of fraud, which lead him to harm the trans woman.
In victimless crimes, there is no possible victim to allege. There is no actual victim from sanctions violations that are designed to cause indiscriminate social harm.
Crimes without victims are pretty much always looked on as unjust when that society falls; and generally speaking have no place in modern society.
I see no way that couldnt be abused either depending on who you call a victim /s. See trans panic defense.
In the trans panic defense, there is still a victim alleged. (Wrongly) the man believes he is a victim of fraud, which lead him to harm the trans woman.
In victimless crimes, there is no possible victim to allege. There is no actual victim from sanctions violations that are designed to cause indiscriminate social harm.