Question

"A large number of male gametes do not make it to the female gamete, and hence, several thousands of male gametes are produced to overcome this loss"

how can secretion of thousands of male gamete overcon the problem of reaching the female gamete

Answer 1

Higher no, of male gametes increase the probability of reaching male gametes to the female gametes and chances of successful fertilisation increases. So a lot of number of male gametes are produced to increase the success rate of fusion of male and female gametes.