Cities on Stilts to Protect Endangered Habitats

This article claims new cities are slotted for development in south Florida, which will destroy panther habitat.
https://www.theguardian.com/us-news/2019/jan/02/florida-panther-extinction-collier-county-development-project

It is understandable that so many people want to move south for the weather, but can't they build habitats for humans that don't displace natural habitat for other species?

There is, after all, plenty of space available above the ground and tree line if developers would just put in additional effort and expense to build the city 'on stilts' so to speak. In other words, build high rises connected by above-tree roads so that no land clearing or automotive traffic occurs on the ground level.

That way, panthers and other species will be free to live in their ground- and tree- based habitats without becoming roadkill or having to relocate to another area.

If humans want to go down to the ground level to enjoy the preserved natural habitat, they can do that too, just not with cars. If they would just keep their driving and shopping activities above the trees, there would be plenty of preserved natural habitat below for them to go down and enjoy as eco-tourists.