No, that did not break him. It made him so mad that he held the coats of the men who stoned Stephen, thereby condoning and taking responsibility for Stephen's execution. It did not break him. It galvanized him to exterminate all the other Christians he could find.
If what you say is true, then a vision of Christ on some "road"...... wouldn't have changed his mind. He would have attributed it to a distraction. Think...............
Luk 16:30 And he said, Nay, father Abraham: but if one went unto them from the dead, they will repent.
Luk 16:31 And he said unto him, If they hear not Moses and the prophets, neither will they be persuaded, though one rose from the dead.
Paul was receptive before Christ ever appeared to him. He was just doing his job. Fulfilling his role. Going alone... You know something about that.... right??????????????
Indeed it does hurt, and it hurts even more when you resist and kick against them. Saul was continually being "probed" (as you want to call it), but he wasn't listening, and was fighting against the One who was probing him (God).
Like you.... right? Sure, there was resistance. Just like you still resist God. I do too. Your requirements are contrary to fact.
Not all reject Him the first time they hear His Gospel. Some of the people identified in Acts heard the Gospel and accepted it immediately. But as you say, many reject it at first. Some even reject it to their graves.
What people in Acts? Israel heard the gospel their entire lives. It was blended with the falsehoods of their teacher's hypocrisies.
Gal 3:8 And the scripture, foreseeing that God would justify the heathen through faith, preached before the gospel unto Abraham, saying, In thee shall all nations be blessed.
Gal 3:9 So then they which be of faith are blessed with faithful Abraham.
The same still happens today. We are all without excuses. We hear and know the Truth and refuse to acknowledge it for many varying reasons. Same with Paul.