Dunno where exactly you found that particular anti-AR-15 meme, but I can see at a glance it was put together by an idiot who knows little more than "Oh! Those scary black riles are evil! Think of the chillllldren!" about firearms.
Y'know How I can tell?
That AR-10 will do things that the AR-15 can only dream about - due to the fact that it spits .308, a round that's very nearly interchangeable with the Main Battle Rifle class .30-06 as far as bullet size, weight, range and power is concerned, rather than .223/5.56, which is, once you get past all the hype and idiocy that surrounds it, nothing but a slightly heavier and faster-flying .22 bullet. (faster due to having a bigger powder charge behind it) The typical .22LR bullet is the same diameter as the .223/5.56, but the bullet weight is usually between 28-40 grains, depending on maker and bullet style, while .223/5.56 ammo has a larger range of bullet weights available, but the overwhelming majority of folks who shoot them use either 55 grain full metal jacket, or 62 grain steel-core "windshield puncher" bullets.
In other words, that cute little meme that, at first glance, seems to actually convey a reasonable point is REALLY suggesting that us AR-15 folks should instead have a *BIGGER, BADDER, MORE POWERFUL* weapon than the AR-15!
Gotta love the ignorance of the anti-gun folks
(Also, I'm still trying to figure out how you tell the difference between "full semi-automatic" and "standard semi-automatic", and more importantly, how one of them can be any more or less safe than the other - Can anybody help me out on that score?)