I think that the video had some good concerns but seems to presume that they won't be fixed. Horses stuck around for 20 years or more and steam engines stuck around quite a while because they could both use local fuel and cars needed a lot of maintenance. If you have never looked at one you should look up the maintenance chart for the Model T. Going electric already has the ability to eliminate a big chunk of the remaining maintenance in cars with the main issue left being charging. We already have electricity virtually everywhere, we just need to make it more available for use. Batteries have come down in price about 85% since 2010 and judging from the news articles there is no shortage of ideas for making them even better.
I also think that the guy making the video overstated his case in that he was mostly focused on the weight of the camper. Air drag is far more important. I don't think that it was just coincidence that the F150 Lightning was shown with an Airstream in tow of Tesla has shown images of a 5th wheel camper hooked to the cyber truck. They are both very aware of air drag and the things to do to reduce it. With regenerative braking the energy loss due to weight is reduced to rolling friction and that is small compared the air drag of most trailers.