Simplify the following text for a Grade 8 native English-speaking person.
Original: But , for StarÄ eviÄ , the `` Slavoserb '' were worse than the Jews ; the notion was firstly of a political nature : the `` Slavoserbs '' are his political opponents who `` sold themselves to a foreign rule '' .
Simplified: But , for StarÄ eviÄ , there was a race worst than the Jews . For him , the `` Slavoserb '' notion was firstly of a political nature : the `` Slavoserbs '' are his political opponents who `` sold themselves to a foreign rule '' .