Did buddhism made India weak?

Barbarians poor could come and loot India so many times

the Buddhists had some pretty warlike kingdoms. learn a bit more history, mate

No, atrocious English did.

No, Idol worshipers,

You don't seem to know Indian history. India was not a Buddhist country when the Barbarians looted India. Countries following Buddhism repulsed even great powers like the U.S.A.

yes ! after Buddhism's advent davits and looters invaded India and made us slaves

over emphasis on non-violence by Buddhist was main cause for this

Buddhism actually strengthened India technically and scientifically by establishing world class universities like Nalanda and Taxila, but weakened Vedic religion of India by prohibiting one of its important ritual of animal sacrifice which was performed Vedic Brahmans, provoking Vedic Brahmans to fabricate new religions called Shaivism and Vaishnavism in which animals are worshiped instead of sacrificed and God is depicted in the form of idols.

This has paved the way for Idol worship in India and introduction new gods and avatars of gods, Brahmans turned and twisted the religion for their own benefits.The worst thing happened in this process was introduction of cast based society. Brahmans positioned them self on the top and made a mess of India, it was a terrible custom.