>There are parts of my life that are fine for ad companies to know. What clothes I like, what music I like, what sports I like etc.

Even that is a problem for me. Advertising is manipulation, they want to change my behaviour so I purchase whatever product they are selling. So I've gone from a state of not thinking about buying something to reaching into my wallet.

I don't want any corporation to do that to me which is why I'm against advertising in general.