Hi Tangle.
This sort of 'giant' isn't unprecedented: more than a dozen cases of people over 8 ft (244 cm) tall are known (
here is a list of them).
Here is a verified 8-foot-tall skeleton from late 16th-century Germany. Not exactly a 'fossil,' but it's from a time period that most Americans don't know much about, so it might as well be a fossil, as far as they're concerned.
And,
here is an example of a giant who married
another giant, and gave birth to a (stillborn) giant baby. So, maybe gigantism can be hereditary, and there is a hypothetically viable evolutionary pathway for the emergence of giant humans.
So, the idea that there could have been a tribe of 8-foot giants in the past isn't completely unreasonable. What exactly that would prove with regards to evolution-denial is unclear, however.
And, of course, the idea that there were people big enough to carry the stones of Sacsayhuaman in their arms is unreasonable.
-Blue Jay, Ph.D.*
*Yeah, it's real
Darwin loves you.