Conversation so far:
How was Wilhelm II, German Emperor in handling foreign relationships?
Wilhelm II, German Emperor's most contentious relationships were with his British relations.
Did Wilhelm II, German Emperor have many foreign relatives?
As a grandchild of Queen Victoria, Wilhelm II, German Emperor was a first cousin of the future King George V, as well as of Queens Marie of Romania and others.
Was Wilhelm II, German Emperor very mean to his relatives?
Wilhelm II, German Emperor craved the acceptance of his grandmother, Queen Victoria, and of the rest of her family.
Did Wilhelm II, German Emperor ever get the acceptance he wanted from his grandmother, Queen Victoria, and of the rest of her family?
Despite the fact that his grandmother treated him with courtesy and tact, Wilhelm II, German Emperor's other relatives found him arrogant and obnoxious, and they largely denied him acceptance.

Question: Were his other relatives threatened by his position?
Self-contained rewrite: Were Wilhelm II, German Emperor's other relatives threatened by his position?