Oh yes, let the lawsuits begin. If this were one student who was 'offended' by a BLM display, that would be called bigotry. But let one student who agrees with the bigoted views of the faculty be 'offended,' then rip that display down, and make those students sign a secret censorship pledge!
Unfortunately there is no separation of Church and State for leftists. Their beliefs are paramount, regardless, and enforceable on the rest of society via ad hoc tribunal.