Protect the Pope from Gay People

The Pope was in Germany last week and several news organization reported on how he spoke out against gay marriage. (Read this article)  Shocking-- the Pope is unwilling to update his church's thinking?!

First, I'm not surprised an 84-year-old man is against equal rights for gay people.  (A person's age is a huge indicator on how they'll feel about gay marriage.)

However, I'm always surprised (I don't know why) when church leaders are against gay people.  How is my marriage going to impact the Pope's church?  I'm not Catholic.  Why does it matter to him? 

I don't get it.  Just like he, clearly, doesn't get me.