So imprisoning and murdering Christians was a result of Paul's love for God?
You really want to say that?
Yes, Paul was killing and imprisoning Christians because he believed it was a false cult.
Acts 26:9 I verily thought with myself, that I ought to do many things contrary to the name of Jesus of Nazareth.
10 Which thing I also did in Jerusalem: and many of the saints did I shut up in prison, having received authority from the chief priests; and when they were put to death, I gave my voice against them.
11 And I punished them oft in every synagogue, and compelled them to blaspheme; and being exceedingly mad against them, I persecuted them even unto strange cities.
12 Whereupon as I went to Damascus with authority and commission from the chief priests,
Paul sincerely believed he was serving God to punish Christians who in his opinion were subverting the Jewish religion.
On the road to Damascus, could Paul have simply stood up, dusted himself off, and said "No thanks" and gone on his merry way to imprison more believers?
According to Paul, that is exactly what he COULD have done;
Acts 26:13 At midday, O king, I saw in the way a light from heaven, above the brightness of the sun, shining round about me and them which journeyed with me.
14 And when we were all fallen to the earth, I heard a voice speaking unto me, and saying in the Hebrew tongue, Saul, Saul, why persecutest thou me? it is hard for thee to kick against the pricks.
15 And I said, Who art thou, Lord? And he said, I am Jesus whom thou persecutest.
16 But rise, and stand upon thy feet: for I have appeared unto thee for this purpose, to make thee a minister and a witness both of these things which thou hast seen, and of those things in the which I will appear unto thee;
17 Delivering thee from the people, and from the Gentiles, unto whom now I send thee,
18 To open their eyes, and to turn them from darkness to light, and from the power of Satan unto God, that they may receive forgiveness of sins, and inheritance among them which are sanctified by faith that is in me.
19 Whereupon, O king Agrippa, I was not disobedient unto the heavenly vision:
Why would Paul tell us he was not disobedient unless he had the power and option to be disobedient?
Paul does not tell us he was compelled, he does not tell us he was made willing, he simply tells us he was not disobedient, it was his decision, he chose to obey when he might have done otherwise.
If Paul did not have a choice, then why mention this at all?