Simplify the following text for a Grade 13 native English-speaking person.
Original: Many such groups have been attempting to gain new recruits and increase their political influence by rebranding themselves as defenders of `` white heritage '' while de-emphasizing their dislike of minorities and Jews .
Simplified: Many such groups have been attempting to gain new recruits and increase their political power by rebranding themselves as defenders of `` white heritage '' while trying to hide their dislike of minorities and Jews .