The higher seekers will always slowly veer towards SD, wherever they are. The other religions are school level knowledge mostly meant for creating the base of bhakti and a sense of God (not God knowledge).

Once people grow beyond that, their questions remain unanswerd. This is where the spread of SD knowledge through different means enable people to reach to the knowledge encyclopedia of TRUTH.

SD is not limited to India. It belongs to the world. It belongs to the eternity.

Again the TRUTH cannot be covered for long and it has been proven again and again.

The purity of Ramakrisha (who belongs to the masses) is so high that no one can sully him. Rather the trier get sullied himself.

Love and best wishes