The Gospel is neither liberal nor conservative sir.  It simply is.  It is truth.  Jesus did not denounce the teachings of the clergy of the day but their immoral behavior and hypocrisy. 

Teachings should not disregard scientific truth, but that does not imply theologians should jump to conclusions every-time some scientist somewhere gets a brain storm and thinks he has everything figured out.  Scientific progress is not stable, the Faith is. 

I have no problem with unionized teachers and certified teachers in Catholic schools.  Just realize in order to pay for that tuition would have to rise, making the schools even less accessible to the poor.

Jesus was indeed humble of heart, etc. That does not imply Jesus was a wimp, a pushover or a nice guy. It also does not imply that Catholic social teaching is all there is to the Gospel.