"Yes, Christianity is the one true religion."
Prove it.
"That may sound awfully dogmatic and narrow-minded, but the simple truth is that Christianity is the only true religion."
You're already repeating yourself. I can scream "The sky is yellow!!!" 500 times, but that doesn't make it a true statement.
"Jesus said that He alone was the way to the Father (John 14:6), that He alone revealed the Father (Matt. 11:27; Luke 10:22)."
No, a human writer attributed those quotes to him.
"Christians do not go around saying Christianity is the only way because they are arrogant, narrow-minded, stupid, and judgmental."
Some of them are. For that matter, so are some Jews, Buddhists, Taoists, etc.... By the way I'm still waiting for your "evidence."
"They do so because they believe what Jesus said."
No, they believe what a human writer (who didn't even live in the same century in which Jesus is claimed to have lived) claimed that he said. I can't help noticing that you didn't get around to providing this "proof" you're always bragging about.