I don't think deleting a Facebook account really matters in this day and age.

The FB Ads SDK has infiltrated every nook and corner of your life. From websites to your phone to TV's to iot. I am scared by the prospects of that level of intrusion than anything else. They don't need your account.

Visiting my account off FB activity was just there tip of the iceberg. They can connect everything about you without your involvement...

A mere FB account doesn't do much. Sure in the short term we can have lengthy blog posts about "deleteFB" and so on but really it's mostly for sentiment not really concrete.