I'm just telling facts... One who doesn't take to Krishna consciousness - is most condemned and cannot be delivered for millions of kalpas (kalpa = 1000*10*432000 years):
"Śrī Caitanya Caritāmṛta Antya 3.255

e-vanyāya ye nā bhāse, sei jīva chāra
koṭi-kalpe kabhu tāra nāhika nistāra
SYNONYMS

e-vanyāya — in this inundation; ye — anyone who; nā bhāse — does not float; sei — that; jīva — living entity; chāra — most condemned; koṭi-kalpe — in millions of kalpas; kabhu — at any time; tāra — his; nāhika — there is not; nistāra — deliverance.
TRANSLATION

"Anyone who does not float in this inundation is most condemned. Such a person cannot be delivered for millions of kalpas.
PURPORT

The kalpa is explained in the Bhagavad-gītā (8.17): sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ. One day of Brahmā is called a kalpa. A yuga, or mahā-yuga, consists of 4,320,000 years, and one thousand such mahā-yugas constitute one kalpa. The author of Śrī Caitanya-caritāmṛta says that if one does not take advantage of the Kṛṣṇa consciousness movement of Śrī Caitanya Mahāprabhu, he cannot be delivered for millions of such kalpas."

However, situation is not hopeless - even atheists can be delivered if they take Sri Krishna-Caitanya as Supreme Personality of Godhead:
"
Sri Caitanya Caritamrita Adi 8.38

'caitanya-mangala' sune yadi pashandi, yavana
seha maha-vaishnava haya tatakshana
SYNONYMS

caitanya-mangala  the book named Caitanya-mangala; sune  anyone hears; yadi  if; pashandi  great atheist; yavana  a nonbeliever in the Vedic culture; seha  he also; maha-vaishnava  great devotee; haya  becomes; tatakshana  immediately.
TRANSLATION

If even a great atheist hears Sri Caitanya-mangala, he immediately becomes a great devotee."

So, atheists may still have hope to get out of hell and also of this material world.