The Church has always been bad!!! Neither the Church nor Christianity corrected any error. They were leashed and tamed only after WWII by the modern men.The other problem is, while the Church corrected its error of being a religious government, and abandoned its political ambitions of wanting to rule the nations of the earth, Muslims wrongly continue to express Muhammad's government religion as being Gods ruler on earth.
The error of the Church's political ambition of the past was an abomination to God, and so it is Muhammad's Muslim followers are an abomination to God in today's world.
The problems in the Muslim world, are mostly political. Lack of education of masses and lack of good governance, are the ailments that we face. You took two thousand years to civilize. They came six hundred years later. They will catch up fast within 100 years.
Christianity is the abomination in the sight of God, not Islam. This is a fact, which you cannot and adre not deny!