Plenty of porn is available online for free, but if lawmakers in Arizona get their way, free porn—an American right—may soon be a thing of the past. State officials are proposing a bill that would require people pay a one-time fee of $20 per device to unlock a firewall that would be installed on all internet-connected devices. This firewall would block access to explicit content.

The bill, called the Human Trafficking Prevention Act, would use the money obtained from the bill to fund groups that fight against human trafficking, domestic violence, sexual assault and other like-minded issues. Similar legislation is in the works in a dozen other states, including South Carolina, Florida, Georgia and Texas. Lawmakers in North Dakota and Wyoming, however, have already rejected similar bills in their states.

Let’s be clear: we completely support increased funding to help prevent human trafficking and sexual assault. One might even think that the $20 tax will, in part, also combat online piracy and support adult filmmakers. We’d be on board with that cause, too, especially since porn stars now have to juggle multiple careers to make end’s meet. But alas, that’s not the lawmakers’ impetus for introducing a $20 firewall.

Instead, the tax is an excise tax, aimed at reducing the number of people who watch porn. According to Arizona-based lawmakers, who plan to introduce the bill this month, porn is a public health problem and contributes to sex trafficking. “What we know about pornography is that it’s addictive. It actually affects the brain,” Kathleen Winn of the Arizona Anti-Trafficking Network told CBS 5. “Like any drug, like any addiction, you need more and more and more of it to get the same reaction from it as the first time you saw it. So yes, I absolutely believe pornography is contributing to the growing criminal enterprise of sex trafficking.”

Critics like attorney Russ Richelsoph believe the bill’s policies are an infringement on American’s freedom of speech. “While I’m not advocating pornography, it is a form of speech. It is protected by the First Amendment, and it is a problem if they’re trying to create a tax to prevent people from engaging in that form of speech,” Richelsoph said.

He fears approval of this legislation could open the door to action on other kinds of speech. “If this passes First Amendment muster, what would prevent states that are not friendly to firearms from doing the same thing with regards to websites that have content about firearms?”

Winn has rebutted, “We have taxes on cigarettes. We have taxes on alcohol. We have taxes on any product that you go and buy. This is a product.” Considering that Pornhub averages 64 million hits a day, the bill, if passed, is bound to rub a lot of people—who are rubbing themselves—the wrong way.

If interested, you can read a first draft of the bill here.