I don't understand why everyone is arguing about whether their CO2 emissions are less than from some other source, when the whole point is we need to be carbon

I don't understand why everyone is arguing about whether their CO2 emissions are less than from some other source, when the whole point is we need to be carbon neutral within the next 15 years. Average CO2 emissions per US Citizen as of 2018 is 16.6 tonnes. Go buy your carbon offsets while they're cheap - less than $9/tonne over at cooleffects.org, which is what I used yesterday.