But that's the whole crux of the matter. Isn't it. Help, when it makes something possible that would not have been possible without it, is causation. If I help a toddler get to the top of the steps, when he's at the age where he could not have made it on his own, then in a sense I did cause him to get up the steps. That's why you have strong language in the WCF in the section on irresistible grace. If by help, you mean like if I see you picking up groceries you dropped and I stop and help you, but you would have done it anyway, then that is not essential help and it is not causative. You guys that say the work of the Holy Spirit is necessary for salvation have to decide which type of help you mean. The fact is, it either is essential, or causative, or not truly necessary. I'm just trying to show you that the Calvinistic system, while man made and not perfect, is indeed well done, and logically no worse than any other system.
Help that makes something possible is not causation. The person still has to avail themselves of the offered help. We are not toddlers we are thinking individuals who have the capacity to make logical choices. Help offered via conviction of sin does cause the person to repent but it can give them the motivation to do so. Logically if conviction caused a person to repent then all would repent and trust God. But practically all are convicted but all do not repent.
John 16:8 And when He has come, He will convict the world of sin, and of righteousness, and of judgment:
Now as to your "irresistible grace" we have two options,
1] The HS is not sovereign as we know that all do not come to repentance
or
2] God is disingenuous when He say that He desires all to come to repentance.
Via your "irresistible grace" we have God forcing people to repent as they have no option. You can't say well they would have repented anyway, but how can you know that.
The Gospel call in Calvinism is not a well meant or sincere offer. Only those that are included in the
Unconditional Election will partake of the
Limited Atonement and will be drawn to God by His
Irresistible Grace. So all men do not have an equal chance to know or trust in God.
The Calvinist system is man-made and is logically flawed. Augustine was influenced by Manichaeism, a Gnostic deterministic philosophy. He brought those ideas into the church and Calvin and the reformers just carried them on.