I guess my semi-auto .22 rifle is also an "assault" weapon since it works the same way as an AR-15.
Anyone who owns a semi-auto deer rifle would also own an "assault" rifle, because they too function the same way.
Fully automatic (machine-guns) are illegal, semi-automatics have never been illegal. An AR-15, AK-47, sold in the U.S. to citizens can only be semi-automatic.