I think because it's a pretty gross mischaracterization of the demographic? Usually hyperbole is used for effect to more emphatically illustrate a generally true or accepted point.
The number of Americans who use nightly sleep aids is extremely low. Like, a vast vast majority of people never take them. I don't know anyone who regularly takes them, and honestly I don't know many who take them even occasionally.
So this meme uses hyperbole to drive home the idea that Americans have a pill problem regarding sleep aids and no one in Europe does. I have no idea how the numbers shake out in Europe but I can say in America it is not as characterized. So it's less hyperbole (exaggeration of a fact) and more like a lie.
Step 1. No phone/TV/screens in the bedroom
Step 2. No screens 30 min before going to bed
Step 3. Go to bed at the same time each night
Step 4. Set yourself up to actually get enough sleep
Try this for 6 weeks and then if you seriously still cant sleep discuss with a doctor.
There are alarm apps that can be set up to require taking a picture of a specific thing to turn the alarm off. I used one in college, where I had to take a picture of my toilet. Ten years later I still wake up around 6am every day with no alarm.