Unfortunately the general public ARE stupid and will probably accept whatever the press and the manufacturers feed them, after all the majority of people still believe that F1 is the pinnacle of motorsport
The other problem is that no other manufacturer (other than Honda) has come forward and declared an interest and commited a budget for a P1 assault. Porsche have said they will if the regs are equalised and 2-3 others may do depending upon the regs.....Now these people need to publically declare their dislike of the rules and commit to a programme!!
I suspect that when 2 or 3 declare for P1 programmes with petrol engines then the rules will very quickly be equalised until that time i cannot see it happening quickly!