A few things.
1. 6'1" @ 215lb is not that bad. I'm 6'4" and 195lb. Morbidly obese would be like 250lb+ at your height, at least in the US.
2. If you start with light weight and follow the linear progression of a program like StrongLifts, you will not likely hurt yourself. Weight lifting is safer than most forms of cardio, especially when practiced with good form. It would be helpful if you have a place you can exercise where there is a squat cage, so that you can use safety pins, but it is also not that hard to get out from under a squat. Search for "how to safely fail a squat" for more info.
3. It will be helpful to have a coach or a knowledgeable friend to check your form. Preferably someone who often squats big already. In a pinch, you can video yourself doing and ask for advice on a forum, or even me, if you want my inexpert opinion. Respect the depth! (That means, squat until the crease of your hip is below your knee.)
4. I would guess that a bigger guy like yourself will find it very easy to make progress early on. I do not think that it is likely you would paralyze yourself doing stronglifts.
5. Soreness is a big problem for the first 2-4 weeks, but your muscles will begin recovering faster after that. You should work out through the soreness, at whatever level of weight you can manage.
6. You will make strength gains more efficiently by supplementing with protein and creatine, and reducing carbs in your diet in favor of fats and proteins.
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You asked about my initial level of fitness. I didn't weigh as much as you, but I was skinny-fat. Very weak and flabby at 190lb and 6'4". The last sports I had done before this was Tae Kwon Do for a half a year back in '09 or so. And before that, basically nothing.
You can see what has happened to my strength since I started stronglifts six months ago here: https://drive.google.com/file/d/0B_bJrdrwGYeWV01FRmZlVFBrTjA.... (Green line is deadlift, blue is squat, gray is benchpress. The big dip recently is when my son was born and I took a month off.) Or you can see me lifting in this YouTube playlist: https://www.youtube.com/playlist?list=PLMiIOCPvdFUBq9GtCb7L3.... I am not claiming this is good form. I am very much a work in progress.
I am by no means strong, but many of my lifts have reached the intermediate level of strength. They were all way below beginner when I started.
The only thing I'd add is that if you want your arms to look good, you're going to need to throw in some curls, because stronglifts does not focus on the bicep. It is a show-muscle -- you don't really use it for much, but it's important for appearing strong in our culture.
In short, I'd recommend the barbell to anyone who doesn't have a particular bone, tendon, or muscle disease. This stuff works.