I did not state anything remotely close to that. Please do not read words into what I say. If I meant to say that the Holy Spirit has no role, I would have stated so. I find it hard to believe that anyone could possibly think the Holy Spirit is not involved in the opening on one's mind and heart to the Gospel message.
Great! That would mean that you are not a Pelagian. In fact you are probably closer to Calvinism than you think. I suspect I am as well.
However you stated that coming to Christ "is always a rational decision." If that were true, then there would be no need for the Holy Spirit. Man could come to some kind of saving knowledge of Christ without any compelling influence of the Holy Spirit. But man is so utterly messed up as the result of sin that man is wholly incapable of coming to that decision without first having his heart and mind changed by the power of the Holy Spirit.
Let me ask you this. Think about it carefully before you answer. Did you pursue God or did God pursue you?
And a couple of followup questions:
When you came to Christ, were you there by divine appointment? Was that a divinely scheduled event?