Please tell me you did not just say that. You view people who are trying to live their lives by themselves as a “museum” which you go to watch and gawk at?
Museum was the term used by others (see R’ Dovid Landesman’s recent comment on CC). To a large extent, that is exactly what the Charaidim want.
Yes, but the people who use those bus lines overwhelmingly want it.
The purpose of law is to protect the minority from the majority. If someone wants to sit mixed, there is no reason why the state can or should enforce separation. (Of course, on a private bus, the owner can do what they want, to the most extent). To have it enforced by violence or the threat thereof is what would be called assault in the USA.