Everyone is entitled to their opinion. Personally, I don't like chiropractors either. That doesn't mean that misaligned tendons, bones, and muscles don't cause a lot of pain and disability out there. When it's a case of misalignment, surgery won't help, it's counterproductive. When it's a case of degeneration or trauma, you may need something more than physical therapy. If you go to anyone for any length of time, and they don't fix the problem, then it's time for something else. My therapist fixed everything that was wrong with my back (from years of bad posture, mainly), in a half a dozen sessions.
Misalignment does not require traction/immobilization at a hospital (which will do nothing) ... it requires intelligent physical therapy.
I had a back that was so bad, I went through regular episodes of extreme pain and immobility. It was often so bad, I couldn't get out of bed (or off the floor in that extreme case). My lower back would "go out" at times and cause tremendous pain on one side. All of that is IN THE PAST. Physical therapy, that is intelligent and targets out of aligned structures in your back, can bring about a complete cure. Your doctors can't do that, sad to say. You're talking to someone who has been through it ..... extreme pain ..... and a complete cure. I wish you the best of luck with your back .... a lot of pain in that area can really unravel your life.