You are correct. This administration has made it very clear where their interests are. They are going to push us into electric vehicles one way or another. The best way to do that is to make internal combustion unaffordable and unrepairable.
The 3.6 isn't going to out tow the 3.0. Period. The 3.6 has a slightly higher GVWR because the curb weight is less.
Put the same trailer behind both and the 3.0 will walk away from the 3.6.