Śrīmad-Bhāgavatam 1.2.16

"O twice-born sages, by serving those devotees who are completely freed from all vice, great service is done. By such service, one gains affinity for hearing the messages of Vāsudeva."

(...) Therefore the whole Vedic civilization is meant for making people brāhmaṇa. Not to keep him in ignorance, not to keep him in the position of a śūdra. The whole Vedic scheme is that from the lowest grade of li..., existence, one can be elevated to the highest grade. Śudhyanti. Śudhyanti, purification. That is purification. In ordinary life also there are purificatory methods, daśa-vidha-saṁskāra.

That purificatory method begins before the birth, which is called garbhādhāna-saṁskāra. Not that a man, a high-caste brāhmaṇa or kṣatriya or even vaiśya... Especially brāhmaṇa and kṣatriya. Especially brāhmaṇa. He's not meant for giving birth to a child like cats and dogs. He has to observe the garbhādhāna-saṁskāra. In the śāstra it is said in a brāhmaṇa family, if the garbhādhāna-saṁskāra is not observed, he immediately falls down to the śūdra class. Kalau śūdra-sambhavaḥ.

Because this garbhādhāna-saṁskāra is not observed, therefore it is to be taken, accepted, everyone is a śūdra. But the Kṛṣṇa consciousness movement is to again elevate the śūdra to the standard of brāhmaṇa. This is the Kṛṣṇa consciousness movement. Because without brāhmaṇa... Just like without head, what is the value of your body? Brāhmaṇa means the head.

mukha-bāhūru-pādebhyaḥ
puruṣasyāśramaiḥ saha
catvāro jajñire varṇā
viprādayaḥ pṛthak guṇair

[SB 11.5.2]

Brāhmaṇa means the head. Therefore brāhmaṇa is offered so much respect. Because head, without head... In the head, in the brain, you conceive something, and the hands and legs, they execute the order. Similarly, the head of the society, they should be the brāhmaṇas. They are not interested in capturing political power. No. Brāhmaṇa is to give instruction. We find from Vedic literature, there were committees, privy council committees of great sages and brāhmaṇas. They would give the king advice that "You rule in this way." And if the king is disobedient, sometimes the brāhmaṇas would dethrone them or kill them. That was Vedic system.

We find from the life and ruling of Mahārāja Pṛthu, how he was ruling over the world, how he was observing that every community, either brāhmaṇa or kṣatriya or vaiśya or śūdra, they were properly employed. There was no unemployment question. It was the duty of the king to see that not a single man is unemployed. He must be engaged. So they made arrangement like that.

So what is the idea? The idea is to elevate everyone gradually to the position of brāhmaṇa and Vaiṣṇava, and thus make their life perfect. That is the scheme of Vedic civilization. Cātur-varṇyaṁ mayā sṛṣṭaṁ guṇa-karma-vibhāgaśaḥ [Bg. 4.13]. Not that "Keep the śūdras or the mlecchas in the downtrodden position, and let me advance." No. Everyone should cooperate. Why the śūdras or mlecchas and yavanas should remain as such? Actually, India's falldown is meant by that process. Nobody cared. So many Muslims, they converted, but the higher caste, they did not care = "Oh, they have become Muslims. Reject them." Why reject? Kṛṣṇa says,

māṁ hi pārtha vyapāśritya
ye pi syuḥ pāpa-yonayaḥ
striyo vaiśyās tathā śūdrās
te 'pi yānti parāṁ gatim

[Bg. 9.32]

Why these Muslims were neglected? Why they were not turned into Vaiṣṇavas, just like we are doing? This is the fault of the leaders. Therefore India is now divided, Pakistan and Hindustan.

So if we actually try to understand Kṛṣṇa and Kṛṣṇa consciousness, there is solution for all the problems of society, of government and everything. It is not a sentimental movement. Vāsudeva-kathā-ruciḥ. One must increase the taste for understanding Kṛṣṇa. Just like Kṛṣṇa came. He came not only to dance with the gopīs. He took part in politics. He killed so many demons. He established good government. He showed how householders' life.

Kṛṣṇa.... It is all described in our Kṛṣṇa book, Śrīmad-Bhāgavatam. He was lying with His beautiful queens, and as soon as there is cock crow, immediately He would rise, early in the morning, three o'clock. The queens will be disgusted = "Now it is early in the morning. Kṛṣṇa will go away." But Kṛṣṇa immediately gave up the company of the wife and immediately rise and immediately take bath and do the needful, as it is enjoined in the Vedic performance. He's ideal gṛhastha.

He will give in charity every day thirteen thousands of cows to the brāhmaṇas. Read all these things. Don't think that Kṛṣṇa consciousness movement is simply dugdughi.[?] Not dugdughi. It includes everything, all-pervasive. Kṛṣṇa is ahaṁ sarvasya prabhavaḥ [Bg. 10.8]. Kṛṣṇa is the root of everything. Therefore anything you conceive of---politics, sociology, philosophy, religion, anything---there is adjustment if you become Kṛṣṇa conscious. That is the Kṛṣṇa consciousness movement.

Yad yad ācarati śreṣṭhas tat tad evetaro janaḥ [Bg. 3.21]. Therefore we want some leading personalities to become Kṛṣṇa conscious so that others will follow. So that others will follow. But if we go some leading personality, minister or prime minister, "Oh, we are secular. We have rejected Kṛṣṇa, that's all." Nonsense, what is your value, rejecting your Kṛṣṇa? Harāv abhaktasya kuto mahad-guṇāḥ [SB 5.18.12]. You are rejected.

You have no good qualification. You have rejected Kṛṣṇa; therefore we reject you. Harāv abhaktasya kuto mahad-guṇāḥ. Anyone who is not Kṛṣṇa conscious, he has no value. We don't give any value, however he may pose himself as a very great man. No. We say, harāv abhaktasya kuto mahad-guṇāḥ. Mano-rathenāsati dhāvato bahiḥ. "Because you are not Kṛṣṇa consciousness, you are hovering on the mental plane. Therefore you must fall down." This is the conclusion of śāstra.

Read all : https://vedabase.io/en/library/transcripts/721027sbvrn/?query=Mahatma#bb211570