I think Christians don't realize it is
their responsibility and obligation to put sin to death in their lives. Christ gave us the power to do that. Now we are responsible to use it.
Romans 8:12
12 ...we have an obligation—but it is not to the flesh, to live according to it.
Romans 6:12-14
12 ...do not let sin reign in your mortal body so that you obey its evil desires.
13Do not offer any part of yourself to sin as an instrument of wickedness, but rather offer yourselves to God as those who have been brought from death to life...
I think Christians resist this Biblical truth because they have been taught by an ignorant and corrupt church that for you to put sin to death is you trying to earn your salvation. I know that you know this but for the sake of others reading this, we put sin to death BECAUSE we are saved and have the power of God in us to not have to sin anymore.