Sir, I also have had trainers, as well as others I trained with. Yes, I've have soft tissue injuries. My most severe soft tissue injuries where obtained playing softball. I am particularly cautious with my left knee, as I injured it running, and knees are particularly susceptible to injury in a variety of lifts. Yet, somehow, I've never further injured it lifting (other than taking a day off or two), and that includes squats (ass to grass), deadlifts, cleans, snatches, and bench. By paying attention to how I was lifting, and my condition, and when my form started to become compromised due to exhaustion, I laid off, forgoing the remainder of a workout, perhaps taking a rest day or two, or sometimes even safely dumping during a lift and walking away.

I don't think this is luck: I think this is prudence. Elsewhere you mention you don't think form is key. I know how important it is to keep my knees behind my toes if I'm to properly protect them, and endeavor to always do so. That's form. And it's important. I'm keenly aware of how long it takes to properly heal connective tissue and I'm not willing to unnecessarily risk that. Yet, I lift. And I think I lift safely. My experience has shown that to be the case for me. As for soft-tissue injuries taking weeks or months to heal, no, I've never had such as a result of lifting (and rarely other times). And that's not me working through the pain or whatnot. I'm not that kind of lifter at all. Perhaps I'm not pushing myself hard enough? I'd rather say I'm wisely not pushing myself to injury.

If you find fault with Mark Rippletoe or Starting Strength, fine. Personally, if I find some training regimen that doesn't make sense to me, I don't do it, while recognizing that others might find value in it. I also wouldn't follow a regimen blindly, and, as the quote from Rippletoe I pulled, I have a hard time believing he would think doing so is the only or best way. Regardless, if you want to lift (and I don't think that's the only option), there are other programs out there you might follow, or use as a basis for creating your own.

If you think there are no further precautions you could have taken, fine. I know people are fallible. I'm not perfect, and my trainers haven't been perfect, but together we've been able to train successfully. I know people get injured in all manner of sports, including lifting, for all variety of reasons. Two of the guys I lifted with got injured; one never paid much attention to his form and after he was injured acknowledged his injury was a result of that. Another, while paying attention to form, was always pushing himself, and injured himself lifting heavier than he should have. These are both examples of what happens when you ignore form and your own condition. I suspect you'll take those as examples as lifting being inherently risky. I take them as object lessons of the importance of form and paying attention.

I also know people have all kinds of choices and preferences. You can't even guarantee that you won't badly twist your ankle walking on flat ground, much less down the stairs carrying a load of books, or throwing your back out shoveling snow.

I'm not sure what you've chosen to do in place of lifting, but I certainly hope you find something that you're comfortable with. I find it puzzling that you've throughout this thread (and not only with me) chosen only to find fault with lifting without spending any time describing alternatives you find acceptable, while I (and others) have brought up other choices. I don't think lifting is the end-all be-all, nor is it for everyone. Above you mention you want to lift. People have given you advice on how you might lift safely. If you aren't convinced, I don't think that's skin off of any of our noses. But please don't rail against what others have found useful and enjoyable just because you haven't found success or satisfaction.

As I don't think I've said so explicitly, let me say outright that I'm sorry you've been injured. That sucks. I sincerely hope you find a training regimen that works for you and that you are injury free going forward. Best to you.