ok so the variables are as follows:
-- Electricity costs at your home (assuming you charge at home, which is of course is not always true)
-- Supercharging rates along your journey corridor
-- Average (or some other meaningful approximation) Wh/mile for your driving style
-- Local cost of gas and cost of gas on your journey corridor
-- Choice of ICE car for comparison
-- MPG of chosen ICE car for your driving style
-- Current economic conditions (e.g. Covid driving gas prices down)
-- Weather conditions when you make the journey
There is enough variation here to pretty much draw any conclusion you wish. If you bias the variables toward EV, you can show EVs are better, if (as the OP seemed to do) you bias toward ICE, you can show ICE are better. The reality, of course, is "it depends". In my case, in the PNW, gas is pretty expensive, and electricity cheap, so EVs win out by a WIDE margin.
No doubt in other areas it is very different (TX, for example, has cheap gas and expensive electricity so I am told, and of course in CA they are both expensive). However, over the medium term I would expect electricity prices to continue to go down overall while gas prices rise, so perhaps things will change (long term its not clear since at some point the rise of EVs will increase demand for electricity).