FYI i do not support watching porn, using drugs, drinking alcohol, and all the other things that used to be frowned upon by different religions, but trying to prevent such thought-crimes and self-harm crimes by law instead of persuasion have always caused more harm than good.
It's not about the viewer becoming an abuser him/herself.
It's about creating porn with people who are being abused, exploited and trafficked.
It doesn't necessarily have to be a violent porn video.
This is about the owners of those porn platforms having to take this issue more seriously - which they didn't according the investigations, i.e. profit is more important than investing more money in their platform to detect and take down those videos with trafficked and exploited people.
Hopefully in a few years, when neural nets will be able to generate such videos with anyone, people will stop obsessing over deleting numbers.
One of the abused girls asked PH to take down that video for months.
And it's not just that girl - here let me highlight another bit of text from the campaign site.
"Likewise, the Sunday Times investigation into Pornhub reported finding "dozens" of illegal abuse videos within "minutes", including abuse images of children as young as three years old. Some of the videos identified by the newspaper's investigation "had 350,000 views and had been on the platform for more than three years." It went on to say "three of the worst clips still remained on the site 24 hours later."