I was wondering about this question for a long time. It seems logical that the same women, who tossed “a collection of symbolic feminine products, pots, false eyelashes, mops, and other items into a trash can” at the 1968 Miss America Pageant, and proclaimed “Women's Liberation”, would support the “liberation” of fully covered Moslem women. So why don't they?
The answer came to me indirectly from Rush Limbaugh, and is a proof of his famous “Undeniable truth of life #24”.
"Feminism was established so as to allow unattractive women easier access to the mainstream of American life."
Having all women covered from head to toe might seem like an oppression of women by men, to any logical thinking person, but when you look at it from the point of view of Rush's undeniable truth of life #24, it makes perfect sense for feminists to support it. Having all women fully covered, very effectively makes attractive women indistinguishable from unattractive ones.