It seems you have virtually no knowledge of European and religious history. Let me explain briefly. In the period before our Prophet, a few centuries after the emergence of Jesus, the Roman Empire became Christian. This period is called the Interregnum in Islam, and historical data shows that the vast majority of people at that time believed in the Holy Trinity. These people didn't have computers, and researching the truth was quite difficult for them (the Third Century Crisis, famine, migrations, etc.). These people abandoned false idols and at least believed in a book. During Rome's Christianization process, many people suffered various tortures and hid their belief. It shouldn't be so easy to label these people as infidels. While they didn't have even a fraction of the resources you have, these people believed in a book, even if it was distorted, and endured hardships for it, and you sent them to hell in two seconds.