"I am sure you would be upset if a public school teacher was discussing how great it is that they have found Jesus as their savior to their students."
Because that would clearly be a discussion about their religion, not whom they are married to
"A teachers religion, sexual orientation, martial status, political views, or any other personal information is irrelevant and unnecessary to perform the job they were hired to do."
Not always
"As most people pointed out, in the past teachers never discussed their personal lives or views in classrooms, as it should be"
Just because something used to be common doesn't mean it was necessarily the right thing to do