Actually, this is Islam. When they conquer a country one of the first things they do is to tear down the local houses of worship and build a mosque on that land signifying the superiority of islam. Sadly, they Muslims are right in that the worship of Mary is idolatry. Sometimes our enemies know us better than we know ourselves.
They refer to Jesus as the Son of Mary several times in the Koran in an attempt to limit His divinity. In essence they are attempting to say He is only a man...nothing more. The Bible refers to Him as the Son of Mary once.
Next is Son of God -- I think John might have the most references there.
Son of Mary Is this what you were thinking of? http://biblehub.com/mark/6-3.htm
Worship of Mary would be idolatry. But Catholics do not worship Mary. We know she is a human being who has Jesus as her Savior, and is a handmaid of the Lord.