[work in progress]
Plan A: Moksha this time
The chance of that happening is finite but very slim, so we have to retry.
Plan B: Rebirth in dharmic faith and re-try plan A
Given the current population ratios, and assuming that we are born into a family that actually practices dharma rather that just provide lip-service, this is no more than 20%. In other words, if we don't try to attain Moksha this time, there's at best a 20% of even getting another chance to try in the next birth. It may be possible that if we really, really tried to follow dharma to the extent possible, this may work in our favor and increase the odds of dharmic rebirth in our favor. Conversely, if we devote life to adharma, the chance of being born human itself may decrease. There's a 80% that we move to iteration #3, and see if we get lucky. After N rebirths, assuming that dharmic faiths are miraculously still around in this Kaliyuga and form 20% of humanity, the chance that we are born in a dharmic faith = probability of at least one success in N births = 1 - probability of no success in N births = 0.8^N. For example, the probability of being reborn dharmic in our next seven lives is no more than 79%. However, we can increase this probability by adopting the dharmic way of life in every birth, regardless of where we are born. This leads to plan C.
Plan C: Reject exclusivity and follow dharma regardless of birth
This requires that pluralism, righteousness, and dharma be respected and prevail for ages to come, so that the dharmic way of life is a popular option. This is the only way we can reduce our dependency on luck. Better start working towards that right now, and improve our chances in the Moksha probability cycle!