This data stays forever. It will be there in decades. What if Google tags someone as homosexual and in 50 years, we get a new extremist party that claims that

This data stays forever. It will be there in decades. What if Google tags someone as homosexual and in 50 years, we get a new extremist party that claims that information for a genocide? Google knows a LOT about you. Your weird porn fetishes, your political affiliations, your religion, your beliefs. Your friends, family and THEIR political affiliations. It sounds impossible but it's not. Take a look at 1960’s Afghanistan to see how a country can really change in a few decades. Imagine for one second that this goldmine of information existed in 1942. Who can say how 2042 will be...