Please tell me how analytics information about what videos you watch is an invasion of your privacy. Google already has the info, they serve it and their servers have logs which get analyzed.

it is impossible to download something from the web without a log line entry being generated, so what privacy are you losing? Please tell me.

The RTB auction mechanism fires off personal identifiers as part of the auction mechanism to hundreds of third parties. This is problematic to me because my browsing history is being profiled by random companies I’ve never heard of or consented to process my personal data.

Because google links that information to what you do in other places of the internet. I don't care if my church knows my favourite hymn or my sex store knows I buy sex toys, I care if my church knows I buy sex toys.