Why were the early years of Jamestown bad?

it may have had something to do with the falciparium and or vivax form of malaria that was prevalent in this region. Add to that the poor choice of location of the settlement( near to the coast where ground water was often salty and land turned to marsh during wet periods). Also the inability of the Europeans to alter their values and practices to their new environment, where non whites by default were seen as lesser humans, and local knowledge was disregarded, even at the price of starvation.