I've ran into some Christians who claim that they don't need the OT due to Jesus been on Earth.<quoted text>
You are referring to the OLD Testament. As a matter of correcting you, Christians did not choose to ignore any of it. Those laws applied to the Jewish people living in those days and was meant to show the spiritual consequences of SIN and the laws from Exodus, Leviticus, Numbers and Deuteronomy were the books of the law. They was referred to as "Mosaic Law". Christians do not live under Mosaic law with all the sacrifices anymore.. Because Jesus changed all of that by crucifixion on the cross, providing a path for forgiveness of Sins and living under Grace and not law. So, while Christians read the Old Testament to understand the History of Israel and the Jewish people and WHY it was necessary for Christ to come along...We certainly did not choose to ignore any of it.. Just so you know.
As for the KKK using the Bible to justify their views...they are the ones picking and choosing what they want to show in order to justify their views, not unlike many people who pick and choose scripture to prove their points without actually taking any of it into context. Of which not one of them are justified.
They forget that Jesus did NOT come to get rid of the old law AKA OT. But to fulfill it. Meaning the OT is still as valid for Christians.