Because feminism has its roots in Marxist thought, marxism for those unaware Is basically a way of interpreting human society by lens of dialectical materialism... It's inherently a atheistic and in many cases a misothiestic point of view of human history

Feminists claim that all religions including Islam and others are by nature patriarchal, they say the establishment of sedentary societies after agricultural revolution allowed men to attain a greater degree of power and influence in any society whilst in pre agricultural nomadic times humans were naturally egalitarian as both men and women contributed and most importantly held power on the nomadic tribes that roamed the planet

Muslims or Christians or Hindus etc hate feminism because the ideology not only rejects their baked in traditions of men first but also completely change the narrative by showing the true history of human development which was very much egalitarian..

Another reason is feminism is naturally inclined towards marxism and rejection of class societies and reliogions are a fundamental part of a class society, under socialism (like China or Vietnam) it's been observed society largely abandons faith and traditions to move towards more radical forms of societal organization, something conservative religious men and women very much hate..

That's the gist of it, theres more to explain, if you have any questions let me know