many advertising companies have argued it would undermine their industry.
Yes.
“Absent this data, smaller enterprises will lose a critical path to reach and attract new customers
They seemed to get along just fine for centuries without it.
"[...] and consumers overall will have less exposure to new products and services that may interest them,” a group of ad trade bodies wrote in a letter first reported by Adweek.
They say that like it's a bad thing.
I will be availing myself of this law just as soon as the website is up.