Is Jesus' explanation of the wheat and tares literal?

Matthew 13:24-30King James Version (KJV)

24 Another parable put he forth unto them, saying, The kingdom of heaven is likened unto a man which sowed good seed in his field:

25 But while men slept, his enemy came and sowed tares among the wheat, and went his way.

26 But when the blade was sprung up, and brought forth fruit, then appeared the tares also.

27 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?

28 He said unto them, An enemy hath done this. The servants said unto him, Wilt thou then that we go and gather them up?

29 But he said, Nay; lest while ye gather up the tares, ye root up also the wheat with them.

30 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.

This is a hard one because it boils down to theology.

I believe that we are all born in the fallen state, and we all have the opportunity to repent. Some accept that invitation and some don't. That's how the sons of the devil are revealed.......they are the ones who hate God and refuse to repent.

It's not a question of being able to repent, it's a question of wanting to repent, and they don't want to, they refuse because they hate Him.