Do you find that God becoming a man, wrapping himself in human flesh that he offered on a cross for your sins for FREE, to be a "religion"?
Really?
Do you find any other "religion" whereby God offers himself for you, so that you can be a part of him in eternity, and nothing is required because he did all the sacrificing for you?
Hummmmm.
The last time i checked, belonging to Christ and thereby adopted by God, is not a religion, but rather it is a family that is referred to as Jesus's own "body".
So, if this is a "religion", then its the only one like it.
And if you check your facts, you'll find that a "religion" is created my MAN, not GOD, to allow man to find himself a way to attempt to ither deify himself or reach up and by effort try to equal himself to "god", by himself.
Christianity, is God reaching to you.
So, i think you are wrong in your assessment, and if you would like to attempt to prove your opinion regarding Christianity being a "religion", you might start by sharing with us any other religion where God became a man to save humanity using himself as a sacrifice.
Name another one.
One.