What is the deal with these Flu shot shills I'm seeing on every social platform?

Just a few years ago it was generally understood that:

• Flu vaccine is recommended for young children and those over 65 because that's whose at risk of dying from Flu

• Flu vaccine is only slightly more effective than regularly washing your hands 50% vs 60%

• Flu vaccine is produced in limited quantities and runs out every season, meaning for every 20-something that get one and 80 year old croaks

Now you're some kind of baby-killing monster for not getting a flu vaccine? These people are outrageous.