You'd be surprised how many.
I love Vivekananda's thoughts on this...
Be a true Christian…
In a letter written to Mrs. G. W. Hale, dated 5 October 1899, Swami Vivekananda wrote—
[Source]
We must always remember ours is only to work — we never attain results. How can we? Good can never be done without doing evil. We cannot breathe a breath without killing thousands of poor little animals. National prosperity is another name for death and degradation to millions of other races. So is individual prosperity the beggaring of many. The world is evil — and will ever remain so. It is its nature, and cannot be changed — “Which one of you by taking thought . . .” etc. (Matthew 6.27.)
Such is truth.
The wisdom is therefore in renunciation, that is, to make the Lord our all in all. Be a true Christian, Mother — like Christ, renounce everything and let the heart and soul and body belong to Him and Him alone. All this nonsense which people have built round Christ’s name is not His teaching. He taught to renounce. He never says the earth is an enjoyable place. And your time has come to get rid of all vanities — even the love of children and husband — and think of the Lord and Him alone.
Swami Vivekananda's Quotes On Christianity - VivekaVani