Why I Understand But Don’t Understand Church Denominations

I grew up in the First Christain Reformed Church. It was a predominantly Dutch church that teaches the Calvinist doctrine of TULIP. As I grew older, the more I struggled with the church. I left the reformed denomination when I went to college and never looked back. One of the parts of the church that bothered me was that it was a denomination. I didn’t understand why we had to do all these rituals. Why don’t we like the reformed church down the street? Why can’t we get along? We are all Christians.