Considering the fact that the Notre Dame authorities were letting pro-Obama counter-protesters do whatever they wanted, your argument doesn’t hold water.
EV, you are missing the point: A private property owner gets to decide who is trespassing and who is not.
Under the logic you are using,
a pro-life private property owner
can’t keep
pro-abortion demonstrators
off of his private property
during
a pro-life demonstration.
The cure you suggest is far worse than the disease.
If:
it is unwful to treat
pro-life demonstrators
as trespassers
unless
pro-abortion demonstrators
are also treated as trespassers,
Then:
it is unwful to treat
pro-abortion demonstrators
as trespassers
unless
pro-life demonstrators
are also treated as trespassers.