The Leviticus laws were replaced by the New Testament.
I mean, along those same lines, the rule-keeping of the OT is replaced by the law of Christ. Given that you seem to get that, I dont understand why you would advocate for the 10 commandments.
Also, replacing the OT laws with Jesus doesn't excuse that under the same book cover is codified chattel slavery, sexual slavery, genocide, and other horrors endorsed by the same 'perfect' deity.