Meanwhile, many 19th-century feminists tended to regard abortion as an undesirable necessity forced upon women by thoughtless men.[18] The "free love" wing of the feminist movement refused to advocate abortion and treated the practice as an example of the hideous extremes to which modern marriage was driving women.[19] Marital rape and the seduction of unmarried women were societal ills which feminists believed caused the need to abort, as men did not respect women's right to abstinence.[19]