Are sports that involve fighting (such as UFC) immoral?
Response to comment [from a Christian]: "Are sports that involve fighting (such as UFC) immoral?"
No. Some fighting sports (like wrestling of course) are more like acting.
It's always a good to improve one's fighting ability. You never know when/if you'll need it (Lk 22:36).
A Christian should not participate in meditation (e.g. "mokso", etc.) We are Christ-centered.
Response to comment [from a Christian]: "God and Jacob did some MMA back in the day...Genesis 32:24: "Then Jacob was left alone; and a Man wrestled with him until the breaking of day."
Yep.
We've still got work to do (Eph. 6:12).