You don’t get it. There are 50 mehadrin bus lines in Israel. People take those busses because simply don’t know that they are separate.
Why do you assume that everyone is out to get the chareidim? Most of the women that got beat up and insulted were not “provocateurs” or anything- they were just women riding the bus!
Either way, egged and dan are public bus companies. If the chareidim have a problem, they should create their own private bus company. Until then, they shouldn’t be allowed to pressure secular bus authorities to accomodate extremists who don’t even hold by rav moshe’s kulah.