Four. Freaking. Decades.
It's not right to say, "Mother Teresa was not a good person because [minor thing I disagree about]."
Her views do not cancel 45 years of service. I wish more people would be "bad" like Mother Teresa. There would be fewer depressed, fewer lonely, fewer suicidal, fewer addicts, fewer outcasts.
The atheist Hitchens wrote several hit pieces on the religious Teresa due to her views on abortion, suffering, women's rights, and more. But the world is not made better by spilling rivers of ink about perceived imperfections in the laborers helping society's outcasts. The world is made better by the good things people do for others.
I'd rather live in a world with 1 imperfect laboring Mother Teresa than 1000 babbling do-nothings.