Brilliant comments - and links to sources. Right on, Kris!
I'm not going to visit Israel for the very reasons you post. Much as I would like to see the Christian sites in Palestine, I'm not going to put myself under the menacing control of occupation Israeli border guards, Israeli military, and Israeli religious fanatics and settlers.
I'm a secular Catholic, and enjoy going to European pilgrim sites like Rome, Canterbury, Walsingham, Fatima, Santiago de Compostela, and Rocio. (Where travellers from all religions and the non-religious are welcome). Great pilgrimage destinations with a wonderful spiritual vibe, good food, international camaraderie, music, and culture.