>>1962010Even first world countries that maintain a common share of their routes in the form of bridges often struggle with budget and find said bridges to be in disrepair on the regular.
This share of roadways is very very miniscule. And already bordering what is affordable it seems.
So how stupid does that make the question ?
Now regarding wildlife:
Seperating insulated groups of certain species often wreaks havoc on their gene pool. Wildlife that depends on annual movement suffers even worse faith brought about by infrastructure.
One key part to reducing pressure on wildlife is creating accumulations of human activitiy, urban areas, and in return depopulating vast cohesive areas completely. This becomes very obvious when one tries to imagine doing the opposite, that is spreading out all human infrastructure and activity evenly across all available habitable landmass.
Also abstaining from all motorized transport, especially such that requires roads or tracks for operation, and refraining from building such infrastructure, would help alot.
Keep in mind: Nature is gone already. Technology assisted warfare waged by humans on nature has brought us to a point where all nature that remains only does so as a concession of humans. We're at the point where we need restoration. Start by weeding out the weak that depend on motorized means of transportation.