I have an RV friend that tows at the max with his Tundra. Any wind sucks, he makes 6mpg but he refuses to buy an appropriate truck. Its not even that he can't afford one he is looking at a new Tundra when any 3/4 or 1 ton would be a huge improvement.
The Colorados are nice.
For towing a 14' pop up trailer. A 25' TT, hahaha. Good luck. Fullsize 1/2 tons can get worked over hard by a trailer that big in a little wind. Even the 1/2 tons rated for "space shuttle" or "aircraft carrier". It's not just weight, a 25 TT has more surface area than the sails on some pretty decent boats. Ever tied a kite to a cat in a hurricane?
Towing is especially tough on bumpy roads, like over expansion joints over bridges. When that trailer bounces down, it comes back up again, lifting the towing truck with it. Add a turn, wind, rain, and we have another Yukon Denali flipped over in a ditch with kids picking glass out of their skin. Ever year, same olde thing. "But we had trailer sway control!" LOlz.
I subscribe to big truck, little trailer. I like to tow at 80mph comfortably. Not 65. If the average RV'er says you need a 150, get a 350.