Kate represents Queen Elizabeth I and Bianca represents Queen Mary.Elizabeth was shrewish, whereas Mary was docile (at least in their personal life).
The play is pro-shrew.This is a relatively recent theory, or at least recent to be spoken in public, since being pro-shrew back when this play was written meant Getting Crap Past the Radar. In the final scene, Kate the zealous shrew is portrayed as a superior wife to the docile Bianca and widow. Related theory:
Kate wins.She's only pretending to be docile in the end. It's plain when her submissive act begins on the ride to her father's that she has undergone no gradual change of personality or slow breaking of spirit but abruptly grits her teeth and starts agreeing with Petruchio's ridiculous whims just to get what she wants. There's been plenty of scholarly debate on this one.
The scene with Katarina tying up Bianca was intentional Fanservice.
Women only find this play offensive because it exposes the Unfortunate Implications of the most popular female romantic fantasy by Gender Flipping it.What does Petruchio find sexy? Not a humble, submissive, quiet, obedient Proper Lady but a project — someone he can "tame," change, fix, and cure of her evil habits! Sure, she acts like a bossy, hot-tempered shrew to everyone else, but she treats him completely differently, and that means he's special and better than other men! What, ladies, how could you find this offensive? All Girls Want Bad Boys because it's gratifying to change them, and Petruchio's and Kate's victory as the happiest/best couple at the close of the play teaches the moral: "All men should want shrews because it's fun to tame them."
Kate is truly in love with Petruchio and truly wanted a husband all along.In the beginning, she's angry and jealous over her sister having multiple suitors and having none of her own. Later, she seems genuinely distressed when it looks like Petruchio isn't going to show up to their wedding (if she was really being forced into marrying him against her will, it hardly makes sense that she would rant about his absence instead of breathing a sigh of relief). This, of course, requires the interpretation that she wanted a tough-manly-man who wasn't afraid of her, which supports the theory that the play is pro-shrew for implying real men are attracted to shrews.
The moral of the play is: Real men don't beat their wives!A skilled husband doesn't need to resort to beating to control his wife, no matter how shrewish he is.
Kate's personality never really changed.Her shrewishness was an act all along. She put on a disagreeable fašade because any man who couldn't deal with an assertive wife wasn't worthy of her. Once Petruchio proved he was man enough to take it and respond in kind, she dropped the mask and became the perfect wife.
An alternate moral: First impressions can be deceiving.Kate, the "shrew" whom no one likes ends up lecturing the sweet and "perfect" Bianca on what it means to be a good wife after Bianca turns out to be surprisingly disobedient and assertive toward her husband.