Although many people believe Buddhism is an “egalitarian” religion, the fact will remain that sexism/gender bias has been a very integral part of the faith for many centuries. Overall, there is less virulent anti-woman bigotry within Buddhism than many other religions, especially the Abrahamic cultus of Judaism, Christianity and Islam, but misogyny and chauvinism have been apparent enough in the Eastern faiths as well, including the Buddhist.

Historical bases for Buddhist are more important than sectarianism changes. Just like Christian sectarianism changes can make it anything they want and still can’t hide from the history of inequality. Evidence from what is called the Dead Sea Scrolls of Buddhism show:
 
Clearly that none of the existing Buddhist collections of early Indian scriptures—not the Pali, Sanskrit, Chinese, nor even the Gandhari—“can be privileged as the most authentic or original words of the Buddha.” http://whitefeatherforum.yuku.com/topic/3808/The-Dead-Sea-Scrolls-of-Buddhism
“In crossing the river [from Saṃsāra to emancipation] (…) crocodiles are a designation for women.”
Gautama Buddha, Majjhima Nikāya 3
 
“If it were not for women being admitted into [our order], my teachings would have lasted 1000 years, now they will not last 500.”
Gautama Buddha, Dīgha Nikāya 3
 
“Women, with their two-fingered wisdom [i.e. stupid], have a difficult time [understanding what I teach].”
Gautama Buddha, Saṃyutta Nikāya 4
 
“It cannot happen that a woman may become a Tathāgata, a Sammsambuddha.”
Gautama Buddha, Aṅguttara Nikāya 3.14
Traditional Buddhist attitudes toward women associate the feminine with the sensual realm as opposed to the Dharma realm. Women are either depicted as lustful temptresses who threaten the spiritual welfare of monks or as the maternal source of man’s anguish and pain. One level of hell described in both Theravadin and Mahayana literatures depicts a realm which is populated by elderly, grotesquely formed women. This association of the temptress/seductress with the death of the spiritual being is also depicted by the daughters of Mara: Lust, Aversion, and Craving.
 
A few passages from “The Tale of King Udayana of Valsa” from the Collection of Jewels illustrates the mon’s insecurities about women and their beliefs that women are the causes of evil and suffering.
 
“Women can be The cause of great suffering. If desire is destroyed There will be everlasting happiness.”
 
“The dead snake and dog Are detestable, But women are even more Detestable than they are.” http://www.wabashcenter.wabash.edu/syllabi/g/gier/307/women307.htm