dear boricua first of understand the concept of hindisim, hindusim is not religion but a proper way of living, yes there is no option of conversion in hindusim, but you know why because, when almighty god create human, there is only one religion which hinduism, no one knows how long this religion is. so when god had created one race of human and one religion so by default there should no way to come and no way to out, later on many respected saints and prophet had started preaching there religion, in which the have option of converting into there religion but no exit. so you dont worry by default you are also hindu .