BSs are very similar to the vast majority of colleges - the politics of the administration, faculty and students overall lean far left.
They handle the left “end” very well. The right “end” is well-advised to keep their heads down and keep quiet.
Based on observing the politics of one kid and hearing of how he and like-minded (and open-minded) moderates are treated, it seems like moderates either keep quiet or are quickly squeezed out of the middle at our BS (not one you listed). Because even if you try to engage the extreme left in healthy debate, you are regarded as extreme right and labelled a racist, etc.