If they want electric cars to take over a tax will have to be put on them at some point to replace the taxes lost, this is simply obvious.
I assume that like up here your gas taxes go to things like roadwork, which if someone is paying nothing or less will cause less work being done to roads, many of which are in desperate need of work already.
Everyone should pay there share when it comes to things like that, because it's something we all take advantage of that won't pay for it's self. Electric car owners should not be off the hook.