[throwaway9878]

That's what trailers are for. Minivans can absolutely handle trailers even if manufacturers claim they can't. Don't go hard on the gas, keep transmission temperatures down, have sufficient braking capacity. You can easily tell when trailer is overloaded if you have any reasoning skills whatsoever. The most important feature for trailers is trailer brakes, an easily retrofitted feature.

[symfoniq]

It is extremely easy to go over the tow and payload ratings for any minivan sold in the US market (and that's without getting into why vehicles with transverse engines make poor tow vehicles). Towing at or beyond design limits is more irresponsible than owning a pickup truck IMO.