Manchester Police's Operation Spanner back in 1987 (gay men getting arrested for engaging in BDSM) led to a House of Lords case which ruled that consent is not a legal defence, which means that essentially kink is illegal. Particularly gay kink because similar heterosexual cases have been allowed to use consent as a defence. The men arrested were sentenced for up to four years in prison.
While this is not fair and I am against such double morals ... I would much prefer if heterosexual cases were not allowed to use consent as a defence.
The whole pro-prostitution lobby is built on "but consent!".
Some things just should not ever be legal. Once you legalize something if there is "consent" you open the door to coercion and other kinds of pressure, and put the burden of proof on the victim to prove that they did not consent.
It's bad enough women have to prove they didn't consent to be raped, but do you really, really want to live in a world where your relatives have to prove you didn't want to be choked and your death is not an accident if an abusive partner kills you?
Homosexuality has been normalised. Job done. No need advance this agenda any further.
Homosexuality is not a point on a road that leads to sadomasochism. It is a sexual orientation that just exists.
BDSM is a completely different matter that happens to have some overlap with gay male lifestyle for some reason, but does not logically follow from it. (And considering that male homosexuality is, and historically was, more accepted in circumstances where there is no equality between the two men, it reeks of homophobia to me.)