" If he can do that why should we care what his favourite passage is, tomorrow he may reject that, too?"
Because Jenny Catholic who left her abusive husband and remarried isn't hurting anyone.  In fact, she is the victim who deserves the Church's support.  In contrast, people who refuse to heed God's call in Matthew 25:31-46 are hurting vulnerable people.  It is even more urgent with leaders.

"The so-called Muslim ban is to protect the nation from terrorism which is not against any teaching of Jesus."
This is thinly veiled religious discrimination.  The Bubbas who voted for Trump don't much like Muslims.  Bannon wants to keep 'Murica white as part of his nationalistic philosophy.

"Regarding Gorka, as you label most people with whom you disagree as Nazi sympathisers, "
Umm no..  Eyes roll.  And Gorka has ties to Jobbik.  I don't know how much more clear about the guy's sympathies lie.