Simplify the following text for a Grade 12 native English-speaking person.
Original: However , plans for increased autonomy were opposed by the Gaullist opposition in the French National Assembly , who feared that they would lead to calls for autonomy from other rÃ gions ( such as Brittany , Alsace , or Provence ) , eventually threatening France 's unity as a country .
Simplified: However , the plans for increased autonomy were opposed by the Gaullist opposition in the French National Assembly .