As per your comment Hindu temples should be razed as there is no God.
Now tell me what is the proof of existence of any God?
Demolish all churches as there is no scientific proof that a virgin lady can conceive and give birth nor there is any proof that a man can come to life three days after his death, and hence, Jesus is as fake as Ram.
Demolish all Mosques as there is no proof of existence of any Allah or Prophet. If Ramayana can not be considered as a historical proof Quran can also be not considered as a proof for existence of Allah or Prophet.
It is not a question of existence of Ram or Allah. It is a question of faith. Can any body think of demolishing Mecca or Medina for sake of comfort and money? Can anybody think of demolishing Vatican? No, they can not. When it is a question of faith of 80 million people, then these things should be preserved.