First of all, the baby amenities your requested were always in the apartment since day 1, you just had to open the cabinet. More important, for the parking situation, it's the first time that a guest mentionned this kind of issu. Typicly, our guests do researchs and reservations in a more car-friendly neighboorhood if they bring their car.
Moreover, you asked prior to your reservation about the parking situation (which is not mentionned in the ad that there is a parking for the apartment, especially when you noticed that the aparment is in the extrem center of Paris), but you confirmed the reservation by yourself, one minute later, without even waiting for the response.
In addition, we gave you 3 adresses of parking close to the apartment, those parking are registered as public parking, but of course, you have to pay fees for that. There is no such thing as "private" parking in the adresses we gave you. Those parking are mainly used by tourists, like you. Moreover, I'm not responsible for the traffic in the city.
As we already told you, you cannot expect to be in the touristic area and at the same time expecting the comodities of the suburbs (free places to park without any fees).
If you want to be sure to have place to park near by the apartment, that's something you have to plan in advance, especially knowing you are travelling with kids, in one of the main city in the world.
Finally, we did our best to fit your demands even though you've been quite impolite and insulting regarding the "french people". "Pro-tip, if your in France don’t bring a freaking car" : you should know better, you came in Paris, a city, here we are not talking about the entire country. I can assure you that french people do drive cars, but mostly not in Paris.
I always try to make the stay of my guests as pleasant as it can be, I try hard to make efforts when there is an issue, but I can not solve the unsolvable, espacially with this kind of attitude.
Have a great day