re: Why is LA so against toll roads?

Toll roads give you another option, albeit at a price. If you don't want to take the toll, you don't have to. The Loop around Baton Rouge isn't meant for local traffic. It's meant to provide an alternative for heavy traffic going thru Baton Rouge to go around the city all while paying for the road.

In short, out of towners pay for the toll road. Take them off the interstate and Airline, you have less congestion on those roads for locals.