Chris Bolt has some good comments on the old canard that “conversions do not come about through argument.” To his apt observations, I would only add the following:
Now when they had passed through Amphipolis and Apollonia, they came to Thessalonica, where there was a synagogue of the Jews. And Paul went in, has was his custom, and on three Sabbath days he reasoned with them from the Scriptures, explaining and proving that it was necessary for the Christ to suffer and to rise from the dead, and saying, “This Jesus, whom I proclaim to you, is the Christ.” And some of them were persuaded and joined Paul and Silas, as did a great many of the devout Greeks and not a few of the leading women. (Acts 17:1-4)
When they had appointed a day for him, they came to him at his lodging in greater numbers. From morning till evening he expounded to them, testifying to the kingdom of God and trying to convince them about Jesus both from the Law of Moses and from the Prophets. And some were convinced by what he said, but others disbelieved. (Acts 28:23-24)
Preaching instead of apologetics? No. Preaching with apologetics.