【求助】杨鹏难句 22

公子梨

Although fiction assuredly springs from political circumstances，its authors react to those circumstances in ways other than ideological，and talking about novels and stories primarily as instruments of ideology circumvents much of the fictional enterprise.

关于这个句子有好几个地方不明白
第一，circumvents的主语是什么？
第二，这里的react是动词还是名词

其实两个问题算是一个问题，一个明白了另一个也知道了
求解答，谢谢各位NN

Christianyang

talking about novels and stories primarily as instruments of ideology 是circumvents 主语。
react是动词，and把两个句子并列。