"The sale of heroin between two consenting individuals in private currently constitutes a felony. Is it your point that government has no authority (power) to dictate that this behavior is illegal?
Bigamy, polygamy, polyandry, incest, prostitution, etc., can also take place in private among consenting adults. Is it your point that government has no authority (power) to dictate that this behavior is illegal"
I think the government has over stepped on drug laws but not where heroin is involved. Heroin use causes so much other crime that it constitutes a clear and present danger and is correctly regulated under the power granted by the general welfare clause.
Relationships between adults are legal as long as they don't involve marrying more than one person of the opposite sex.
I do not think prostitution should be illegal. much of the driving force for anti-prostituion laws these days is from feminists who equate it with men subjugating women.