Complex sentence: Despite that Donald is sometimes less than willing to trust Huey, Dewey and Louie, Donald has shown that he greatly cares about them, he portrays himself as a father figure towards them and would regard them as his sons.
Split into simpler sentences: Despite that Donald is sometimes less than willing to trust Huey, Dewey and Louie, Donald has shown that he greatly cares about them. He portrays himself as a father figure towards them and would regard them as his sons.