I don’t know why you need this spelled out, but okay.
The thread title is “Commuting by Tesla is cheaper than public transport”. Which is patently false given the parameters the OP chose to use.
Therefore, some crazy math is being used to justify a purchase and life decision.
Except that it's not a purchase (I don't know why a car becomes "life decision", maybe safety?) decision lol. It might be hard for you to understand but... Some people don't buy a car for commute.
For me the "purchase decision" was already justified for weekend road trip etc utilities. I have perfectly fine public transportations for commute where I can browse TMC etc. So the decision here is just an routine one of whether to take the public transportation on weekdays. Nothing big.
In the end, I drive to work around 2-3 times a week. The trade-offs are a wash. Will I buy the Tesla if I can't drive to work? YES. Will I buy if I have to drive to work? YES. (Maybe AWD/Performance model if I have to drive)