So tell me what specific Western ideas come from the Bible, the Catholic Church, or Christian tradition.
Here are some that do not come from any of those things, but rather come from the Enlightenment: Democracy, checks and balances, freedom of speech, freedom of religion, Abolitionism, equality before the law.
The slavery abolition movement was lead first and foremost by progressive Christians: Congregationalists, Quakers, et al.
Democracy as conceived by Greeks and men of the Enlightenment only applied to rich white men. Women were considered second class at best, domestic slaves at worst. While Christianity in practice wasn't any better, Jesus and the NT elevated women to a status of equality not seen anywhere in antiquity. The soul of a woman was fully equal to that of a man, even an emperor. Early Christianity had many important female martyrs and saints. That distinguished it from Greek and Roman antiquity which virtually never assigned prestige or influence to women. By the standards of the ancient world Christianity was very radical, and that is one reason Christianity grew so rapidly: it appealed to women
As to the rest of your post:
Whether you realize it or not, the very fact you know intuitively, at the DNA level, that charity, mercy, love for one's neighbors, the golden rule, benevolence, are unequivocally the correct way to live a virtuous life; the fact that you intuitively admire individuals with those traits, is a living testament to how you have been influenced and shaped by the western Christian ethical tradition -- if only through osmosis.
Its not like Greeks of the 5th century BC didn't know about virtue. But they lived in a world that placed "might makes right" in a preeminent position of conduct. Mercy was intuitively understood to be optional, perhaps even a sign of weakness.
P.s. yes I am aware Christians frequently do not live up to moral tenets.
Also, I do not consider myself a devout Christian, but I do believe in intellectual honesty, truth, and honoring historical accuracy
