Hello Testing life, i can sense that u r from Islam.
If u think no one been told to worship demigods.
Go to Pompeii(an ancient town in 3000BC-79AD) -ITALY, an excavated site discovered in 1970s which was covered by vulcanic eruption in 79 AD.
They found ROMANS worshipped and built couple of temples for GOD VENUS,JUPITER,MERCURY,SUN,MOON,SATURN.
Go to MEXICO and see the ancient villages (unknown BC to 200ADS) AZTEC people worshipped Demi gods like RAIN GOD,AIR GOD,WATER,STONE GODS WHICH GIVES FIRE & ALSO FIRE GOD,VENUS,MERCURY. they also had a pictures for EVILs with their foot turned in opposited directions.
So it shows our Indian , Roman,Aztec(Mexican),Egyptian people worshipped gods,demigods with image.
Then comes Chirstianity,recently in 1000 ADS muslim,Buddhishm,jainism etc.,
So we cannot ignore our ANCIENT GENIUS PEOPLE . Ancient people had a great spirutual and scientific knowledge.
