Why do girls like being dominated?

I never understood this because well the truth is that girls hate it if the guy is abusive BUT they like being choked (lightly), gagged, bonded, spanked etc. in the bedroom.

I assume girls are like this cause of some sort of protection factor where if the guy is strong enough to man handle them, they feel like he can protect them... is that why?
Why do girls like being dominated?
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