BDSM. Its consensual, its private, and most people into it don't harm others or push others into it. Why do people care?
Consent
(3) For the purposes of this section, no consent is obtained where the complainant submits or does not resist by reason of
(a) the application of force to the complainant or to a person other than the complainant;
(b) threats or fear of the application of force to the complainant or to a person other than the complainant;
(c) fraud; or
(d) the exercise of authority.
It is the Supreme Court of Canada's opinion that you cannot consent to BDSM, which makes it a legal grey area.
The anti-ginger thing struck me a bit odd. It started out as a joke but then it kind of morphed into a real prejudice where kids are being legit bullied at school for it. Kids are stupid, they ruin everything. Even ginger jokes.
Topless women, if a man can freely show off his nipples in public, then why can't a woman? Besides, women with small breasts don't have a need for them, since they don't get in the way or become saggy compared to women with larger breasts. Speaking of saggyness, I've heard that bras don't help prevent women's breasts from becoming saggy at all, so there's very little reason to wear one.
Probably the main reason though is because they make you look better in the clothing you wear. They can enhance your cleavage and lift and position everything to make them look more attractive. They also ensure that no one gets a glimpse of nipple when it's cold.
Also abortion. If I want to expel a baby from my stomach goddamn it I will.