You're a weird guy...when someone argues with you with facts, you go run and cry foul! Where did the solid axle > IFS come from? So, it is not ok for me to mention BOF > Unibody? But it is OK for you to throw in SA > IFS?? :shrug:
Why did you buy a Toyota? Isn't reliability and durability the main reason? Isn't that a major plus when off-roading? Jeep GC's QDII system is hardly better than ATRAC...and a far cry from lockers. I agree with you...locker(s) is a good thing to have off-road, but ATRAC is not a limp system as you implied...because the Jeep GC's system is not any better. Now, if you talk about the Rubicon, then i can see your point better.
Lets take your 4runner. A stock 4th gen 4runner will be more off-road capable than your 4runner when it was stock. Yes, your 4runner is smaller and can fit into tighter places...but capability-wise, the 4th gen has a better crawl ratio, way better traction devices, and way better brakes. Oh yeah, the engine and torque is not even close.
Lets talk about YOUR 4runner right now. Your 4runner has a rear locker...wonderful! However, your front diff is open. A 4th gen 4runner has ATRAC on ALL 4 wheels. Now, if a 4th gen owner puts in a rear locker (like what you have done), then that 4th gen 4runner is better than your 4runner in off-road capability because it has traction control on the front axle (aka similar to LSD) while you're completely open.