She denied food and medicine to many unless they saw her way.

An evil old bat who believed suffering and poverty were gifts from god given to humble the arrogant soul of mankind.
To this end she cause unimaginable unnecessary suffering, while scooting about the world cosying up to fiends and dictators trying to buy their way in to heaven.
God riddance to the wrinkled old witch.

"Mother Teresa, now there's a woman who could do with a damn good ironing"
Jasper Carrot

One Opinion.

She was twisted.

The least said about her, the better ?

Hitchens considered her a monster. This is a short clip there are other longer ones.

Too late I think they sainted her.

Among many other things having to do with the Catholic religion, try to make sense of the criteria for sainthood. Several years ago, St. Christopher was stripped of his sainthood because he may have been a mythical person, yet St. Michael, an archangel is real enough to remain a saint.

An excellent example of the catholic ploy to gain converts by "christianization" of revered figures is St. Brigid of Kildare, conveniently named after a Celtic goddess and whose "feast day" just happens to fall on Feb. 1, the same date as the pagan festival called imbolc.

"I think it is very beautiful for the poor to accept their lot, to share it with the passion of Christ. I think the world is being much helped by the suffering of the poor people.”

– Mother Teresa

If that is a true and accurate statement from her, I absolutely agree that, yes, she was an immoral person.

You're right she was a monster. Her being canonized however, would just underscore the fact that the process is based on politics and money not piety.