CiviMail Unsubscribe link goes to an empty Wordpress page
Do you have a basepage set?

Without a basepage, WordPress will use index.php and unpredictable results will occur.  Go to Administer -> System Settinngs -> CMS Database integration.  In WordPress Base Page set a page (civicrm for example), make sure that a WordPress Page (not a post) exists with the same name and slug.

Once this is set your unsubscribe url should be http://get-hope-global.org/civicrm/?page=CiviCRM&amp;q=civicrm/mailing/unsubscribe&amp;reset=1&amp;jid=23&amp;qid=42&amp;h=68396bb3066b85d5

Try it again and see what happens.