But liberal logic would tell you that since everyone
is going 30 mph. it wouldn’t make any difference since
there would be no velocity inequality.
There would be no SPEED inequality. If the direction vectors were different, the relative energies could be cumulative. In other words, if Car A was heading west at 30 mph and Car B was heading east on a collision course at exactly the same speed, while there would be no difference in their speeds, the velocity difference would be of great concern to their respective insurance companies.