Complex sentence: Some feminists object to the sex industry, which they argue is exploitative of women who work in it and contributes to the male-centered objectification of women, increases sexual violence against women and undermines the objective of gender equality.
Split into simpler sentences: Some feminists object to the sex industry, which they argue is exploitative to the women who work in it. They say it contributes to the male-centered objectification of women, increases sexual violence against women, and undermines gender equality.