You have a cheek!! I have specifically said that I don't use the term and yet you still conspire to foist it on to me, to the point that it has suddenly become 'my idea'! Please remove this false allegation forthwith.your idea of a "sin nature"
If by 'power' you mean what is meant when people are described as 'under the power' of drink or drugs, then the term is not exceptional. But sin has no power in itself, any more than drink, drugs etc. It has no personality, no brain that might exert enslaving power. It is people's fallen natures that make them vulnerable to temptation.