I have an f150 lightning. Weight isn't a problem for range you barely notice it. Towing though matters mostly about the number of axels and aerodynamics. I have a small trailer I occasionally tow and it knocks the range to just under half which is... Not great but not terrible either. Running around town towing is fine, but if we were doing long distance (hundreds of miles) I'd probably rent a ice vehicle for it.

But I've done a 600 mile each way trip with the bed fully loaded and it's completely fine

I might be ignorant here as a german but how often are people towing something big 100 miles and more were they do not have time to just charge? I would have said 2-4 times a year (lakelife location far away twice a year?).

I mean for sure, if you are the person who constantly need this, EVs might need a little bit more advantages, but what does an avg F150 owner would tow 100mi every day / regularly?