It seems to me that your complaint is really with what Jesus had to say about the Kingdom of God being like a field which was sewn by its owner and which was laced with weeds by an enemy of the owner.
Another parable put he forth unto them, saying, The kingdom of heaven is likened unto a man which sowed good seed in his field: But while men slept, his enemy came and sowed tares among the wheat, and went his way. But when the blade was sprung up, and brought forth fruit, then appeared the tares also. So the servants of the householder came and said unto him, Sir, didst not thou sow good seed in thy field? from whence then hath it tares? He said unto them, An enemy hath done this. The servants said unto him, Wilt thou then that we go and gather them up? But he said, Nay; lest while ye gather up the tares, ye root up also the wheat with them. Let both grow together until the harvest: and in the time of harvest I will say to the reapers, Gather ye together first the tares, and bind them in bundles to burn them: but gather the wheat into my barn.
(Matthew 13:24-30 KJV)
In the Church there are tares, people whose motive is not to produce fruit for the harvest but rather who are motivated by other things suiting them best as servants of the devil rather than as children of God. Corrupt members, priests, bishops, are like the tares in the parable, but there are many more who are good and faithful servants who are like the wheat sewn by the field's owner (God). These are the good seed who yield a crop some ten, some sixty, and some one hundred fold.
I do not know why you do not understand these things, they are in your New Testament just as they are in mine. And also in the New Testament is written that the Church is the city of God, the New Jerusalem, the bride of Christ, pure and adorned in white; she is spotless.
And I heard as it were the voice of a great multitude, and as the voice of many waters, and as the voice of great thunders, saying: Alleluia: for the Lord our God, the Almighty, hath reigned. Let us be glad and rejoice and give glory to him. For the marriage of the Lamb is come: and his wife hath prepared herself. And it is granted to her that she should clothe herself with fine linen, glittering and white. For the fine linen are the justifications of saints. And he said to me: Write: Blessed are they that are called to the marriage supper of the Lamb. And he saith to me: These words of God are true. And I fell down before his feet, to adore him. And he saith to me: See thou do it not. I am thy fellow servant and of thy brethren who have the testimony of Jesus. Adore God. For the testimony of Jesus is the spirit of prophecy.
(Revelation 19:6-10 DRB)