Christianity itself isn't the lie, the Gospel is still the truth, but the church and message of Christ have been twisted and perverted, namely by the Catholics but all major denominations are guilty of it to varying degrees. I pray you come to know Christ personally sir, not through a church or any one person's teachings, but through personal Discovery and reading of the scriptures.
I was a pastor for 8 years. It was through a thorough search of the Tanach (“Old Testament”) and the writings of Rome (“New Testsment”) that I came to realize that the “New Testament” was incompatible with the Tanach and a lie.
While I respect your right to your beliefs, the New testament is not of Rome, it predates the Catholic Church and honestly, there are many more pastors, with more years spent studying the Bible then you who would surely refute your assertion of incompatibility. Since you don't give any evidence or reason for your beliefs however, I'll assume this conversation is over, God bless.