There are a lot of very good, compelling reasons to believe that Christianity is the one true religion, and Jesus is who He claimed to be.
Nearly 2000 fulfilled prophecies, and there will be more to come as we get closer to the end of this age. No other religion comes anywhere close to that. The odds of even a fraction of those prophecies being the result of chance is statistically impossible.
The unity of the Bible is actually amazing when you consider that it's a collection of 66 books penned by 40 different people from all different walks of life, over a period of 1500 years.... yet from beginning to end, all of it tells the same unfolding story.
Also, many claims in the Bible that people at one point thought were false later were vindicated through archeology.
It has also stood the test of time. The Bible is the most loved and hated book of all time, and for thousands of years the haters have tried to destroy it, discredit it, ban it, etc.... yet to this day, the Bible is STILL the most read, studied, quoted, and top selling book of all time.
Then you have millions (or more likely, billions) of radically changed lives. I'm talking about people who come to Jesus and get born again. Spiritual birth is an actual thing, a very real event that occurs in a person's life that changes everything. As someone who has done missions work through an international Christian missions organization, I've met a lot of Christians...and I have heard so many absolutely amazing testimonies. I've encountered people who came from the worst possible past, and whose lives were completely turned around by Jesus. Why? Because Jesus IS God, incarnate. That's why so many lives all around the world have been completely changed when a person comes to Christ.
Also, Christianity is the only religion / worldview that I can think of that has an explanation for why things are the way they are, that matches with reality. What I mean by that is, Christianity teaches that this is a fallen world, temporarily run by evil people and the lowercase "god of this world", who is the enemy of God. To me, that is so clear, but the important thing to know is that it's just temporary. The true ruler of this world WILL return, and will right all the wrongs and bring justice and peace. And this world will go back to how it was always meant to be from the very beginning… a world of peace and harmony.... as opposed to evil, corruption, war, etc.
Those are just a few reasons. I could go on, but I wasn't planning to write an essay here.
I'll just end with this..... As I mentioned before around here many times, I was a nonbeliever for many years. Coming to Christ was without a doubt the best decision I ever made, the best thing that ever happened to me. Being a child of God is a journey, and it can take years to grow and change.... but the important thing to know is that with God, all things work together for good, and the trajectory of one's life with God is always in the direction of GOOD.
Jesus said:
"The thief comes only to steal and kill and destroy; I have come so that they may have life, and may have it abundantly."
If Christianity was false and evil, as you claim, then you wouldn't see so many lives radically changed for the better, and people who have actually experienced God's blessings, protection, provision, guidance, etc.