What characteristics does Iago think women have? What Is Iago's opinion of women, as illustrated by the characteristics women have early in the play?

Iago is a misogynist  - if not a complete misanthrope. He
has no regard for humankind in general and has no respect for women at
all.

Iago comments each of the females in the play crudely
and negatively. He utilises Desdemona as the tool to bring down both Othello and Cassio,
he says-

So
will I turn her virtue into pitch,
And out of her own goodness make the
net
That shall enmesh them
all.

Iago is aware of, but
maliciously uses, her innocence to bring about the downfall of the two soldiers and the
fair Desdemona.

Bianca is not highly regarded at court and
Cassio is also guilty of abusing her. However, Iago using Cassio's words about the
hopelessly besotted Bianca to further anger Othello shows how he sees that women are
mere toys.

He is crude and distainful of his own wife,
Emilia, publicly and privately questioning her virtue and loyalty and labelling her as a
scold-

 Sir,
would she give you so much of her
lips

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  As of her tongue she oft bestows on
me,

You
would have enough.

It is
Emilia who reveals her husband's evil machinations at the end of the play, and he slays
her cruelly for it.