I'm in the same position as you, I'm going to be starting remicade soon too, but I'll be doing it after a resection and strictureplasty. It definitely is freaky to be put on these drugs, and I have thought about it for a long time.
In the end, I thought; Do I really want to give this opportunity up to keep as much bowel as possible until we find better treatments? If illness is affecting you severely, then I feel like going on the same path is almost certainly going to end worse than Remicade.
Untreated Crohn's has a bowel cancer risk, Remicade has a Non-Hodgekins Lymphoma risk. The only difference for me is that with remicade I at least have a chance of feeling better.
Regardless though, ideally I'd love to take nothing for it and everything to be fine. We all would.
Have you voiced your concerns with your specialist? If you strongly oppose a treatment, more often than not they will present you alternatives.