1)why Twitter com,google.COM,youtube.com, 3 very influential websites, don't restrict these mass of erotic contents? 2)The US government doesn't manage these operators of the websites? 3) Don't they think these contents are very harmful to most people?
I found the answer from here,it's a very clear description which comes from USA also. https://www.quora.com/Why-is-porn-legal-in-the-United-States 1) Money 2) USA is not a country ,but a business enterprise somehow.
These sites bring a lot of money to their owners and advertisers and content creators. And they post what is in demand for most people - it's sex. There is a lot of content about coffee, meat and stuff, and there are people who are not allowed to, and they may also be unhappy. We always try to notice what we want to see. But on YouTube there is also a lot of educational content about hobbies (drones and something like it, rc, embroidery, music, cooking), scientific lectures, audio books and more. In order to have more useful content in the feed, you need to work hard and look for and consume only it
The government profits from porn because of the business aspect, as listed above, but also due to the vast amounts of people addicted to it, and we already know what it can do to a man. People in the porn addiction situation are docile and won't fight back against policy changes. We live in a divide and conquer society (USA), meaning we have 2 parties that are both controlled by the same organization. We are duped into believing in the left and the right, when in reality, the people's opinions do not matter.
