Re: "controlling the amount of money the music companies can make will really solve the problem "
The "control" has to be one of a "moral" control, preferably done by the studios and corporations themselves, but a governmental "censorship" board like existed during and after WWII is the only way it will work.
The media all made tons of money during that kind of government, but they knew there was a "line" over which they dare not cross.
Sure...there was always an "underground" supply of "adult" party record albums with lewd humor by artists such as "Red" Foxx, but in those days MGM, Capitol, United Artists, and the other music corporations produced decent art rather than pornographic sensationalism.
The eternal and infernal battle between "freedom of speech" and "the free market" vs the right for communities to set for themselves minimal standards of what is acceptable to sell.
Example: Opioids by Rx are acceptable for medical treatments. Heroin 'usage' is illegal.
Sex by consenting adults preferably married is acceptable. Lewd displays with
pornographic overtones should not be sold as consumer products.
The younger generations in the West have grown up taking for granted that anyone can behave any way they choose and sell it as well as if anything is "art" if someone will pay for it.
How can such openness and a truly moral society exist together?