That is quite simply not true a Tesla Model 3 battery weighs 530kg a Model X 600kg
The weight of the largest Tesla Model X is 2400kg, the same as an Audi Q7 Diesel, a Range Rover is a lot heavier than either.
The fact is that ALL cars are getting heavier, buyers want ever more comfort, space, features and safety. We have a classic MG Midget that we take out on sunny days, just to remind us of the “good old days” probably weighs about 700kg
I’m sure engineers need to take that into account but it is not just EVs that contribute.