Yes, their arguments are quite reasonable. The aim of our education should be, whatever education we might have got, we must satisfy the Lord by such education. That is the perfection of life. I have therefore asked our chemist friend, Dr. Swaroop Damodar das Brahmachary to refute the theory that life comes out of matter. This is not the fact, rather, matter comes out of life. We have discussed this point very broadly and Swaroop Damodar is convinced that everything comes from life, Krsna-- aham sarvasya prabhavo/ mattah sarvam pravartate (Bhagavad Gita 10.8). So, I've asked Swaroop Damodar to invite Ramananda Rao to come and join him to present this revolutionary theory to the learned advanced scientists. We know it certainly that matter comes out of life. Simply we have to present this thesis in chemical, technological words. Swaroop Damodar has already written one small booklet, "Krsna Consciousness, Purely on a Scientific Basis." So this is the business of big, big, chemists and physicists to present the real facts in Krsna Consciousness. Then such education is valid,idam hi pumsas tapasah srutasya va svistasya suktacyacabuddhi-dattayo avicyuto'rtha kavibhir nirupito yad uttamasloka-gunanuvarnanam Srimad Bhagavatam 1.5.22. So, if they do not believe in Ramayana, Mahabharata, Bhagavad Gita, then they are called unbelievers, so how can you believe their words. Then we come to the platform of reason and argument. If they do not believe in Ramayana and Mahabharata, then we shall reply point to point by argument and reason. Of course, it is not possible to come to the right conclusion simply by argument and reason, tarkapratishtanat.You mention that they have not even heard of Lord Gouranga. So that is their misfortune, and our misfortune also. Our big, big godbrothers in India, they could not preach Lord Gouranga's name all over India. They are simply inclined to criticize me, that my students call me Prabhupada. They could not do anything practical and tangible. They are satisfied with a temple and a few disciples begging alms for the maintenance of the temple.
So, we can understand that they have all become sudras. How can they have interest in Bhagavad Gita. Although some of them have been born in brahmana families, but by quality are all sudras.