What a bunch of useless assertions -- it's akin to being told by a Muslim that Allah is the greatest of all the gods and that you must serve him. Being told this, you'd simply reject it on the basis of "no argument given".
Your only argument is that "the world divides the common era along the birthdate of Jesus", which has a perfectly natural explanation. Constantine claimed to be a Christian, and as ruler of his world, he set this is place. It wasn't because "the whole world" agreed with him, but because he alone had the power to make it happen. Contrast this with the current movement in science and history that has taken the religiosity out of "BC" and "AD" by changing them to "BCE" and "CE"... this clearly isn't because "the whole world" suddenly believed that Jesus shouldn't be the dividing line, but because the people who wrought this change had the power and motive to make it happen.
And your last line, that truth is a choice, is idiotic. The truth is observed, not made. Some evidence is stronger than other evidence, and philosophers have worked hard to define what constitutes "strong evidence", as well as tease out better methods for discovering it. Presumption always has been and still is a poor way to divine the truth, because literally anything can be presumed, whether or not it's true.
You seek what is tangible, as the physical flesh does and can't see the invisible. Sorry you are not seeing this and to each their own, yet my eyes, not physical ones are fixed on:
2 Corinthians 4:18 So we fix our eyes not on what is seen, but on what is unseen, since what is seen is temporary, but what is unseen is eternal.
Thank you for your post and honesty, as it shows to me you are a doubting Thomas, as most of the world is. But regardless truth is truth, Christ died for you to. Then rose again in order to give new life in God's Spirit, if one believes this, Praying for you to see past the temporary physical world
Love you