You can opt out here: https://www.linkedin.com/mypreferences/m/settings/data-for-a...
replies(4):
From my reading of the article, this is Linkedin (an American company) that has decided to collect data about Europeans - the EU is not involved. Linkedin has decided that making it opt-out is covered by "legitimate interests". So I guess the real issue here is that the rest of you just don't get the option - you are included anyway.