Earlier quoted context omitted.
So your assertion is that if all the open space near me was mowed down to make room for massive apartment complexes, then I would actually experience less noise and traffic. It's a bold theory but not one I want to try out in practice.
No. In most American suburbs you can get more density by taking 2 single family homes and replacing them with one 6-plex. You’ll also have more open space, because a 6-plex takes up around one single family lot. Especially if the 6-plex can be 4-6 stories tall. Everyone can have more (private) interior and more (shared) exterior space if the neighborhood allows a little bit of density. As a bonus having more neighbor…
I assure you that neither of those are a good outcome as far as I'm concerned.