I agree. It is healthier to cut ties. Gabor Mate, who has spent his professional life studying addiction, wrote in his book "In the Realm of Hungry Ghosts"

"A therapist once said to me, 'If you face the choice between feeling guilt and resentment, choose the guilt every time.' It is wisdom I have passed on to many others since. If a refusal saddles you with guilt, while consent leaves resentment in its wake, opt for the guilt. Resentment is soul suicide."