There形式主语 are, 谓语of course,状语 people 真正主语belonging to all classes定语 who 引导定语从句,做主语do not want 从句谓to be fascinated and then enslaved从句宾语 by Admass,状语 and who 并列定语从句if necessary 条件状语的省略are从句谓语 ready 从句表语to make a few sacrifices, 从句宾语largely 从句状语material, to achieve a satisfying state of mind.从句状语
这个句子简化后应该是There are people ~~belonging to all classes属于定语,classes又做了先行词,后面用who~and who~俩定语从句来修饰~~if necessary可以放在句中
可以,但要用逗号分开。