no.
that is untrue
mormon doctrine claims that after his assumption into heaven, post resurrection, jeebus descended from heaven in the americas to minister to his "other flock"
no mormon doctrine asserts that jeebus was born for a second time in the americas.
mormonism is chock full of crazy, from god living on an alien world named kolob, to multiple spirit-marriages, to magical submarines taking israelites to the new world, to the magical golden plates, to magical "seer stones" that allow for translation of those imaginary golden plates, to central american imaginary golden plates being hidden in upstate new york.
you dont have to polish that turd, it stinks just fine without any help.