Most state require brakes on any towed item weighing more than 1500 to 3000 lbs. Here is a link to some regs... https://www.readybrake.com/state-towing-laws.html
Your Jeep can be towed 4 wheels down (flat towing) if it has a neutral in the transfer case. The front wheel drive cars you listed are reasonable candidates for the tow dolly.
I had a 2007 Tour Master T40C and our 2005 Acura MDX SUV was rated for flat towing but later years of that model did not similarly recommend it. The MDX had tow instructions in the owner manual, and it even was automatically set up to not add miles to the odometer when being towed. You are correct in saying the Tour Master does not get stressed when towing a normal vehicle and is rated to up to 10,000 lbs. Proportional brakes are the best setup for the toad...we used air brakes so it was completely seamless to the RV braking.
I was never wild about tow dollies since you have to store them "someplace" each time you set up in a park. Surge brakes are a pain when backing, so electric is the better choice -- plus you have the option of applying the toad's brakes separately from the main RV brakes if needed. Usually this is a benefit to help squelch sway, but that is much more likely towing a trailer than a vehicle...