Discrimination law is meant to act as a shield to protect people from unfair treatment, not to be used as a sword to attack those whose beliefs you disagree with.
This quote comes from an opinion piece in the Telegraph commenting on court case involving an elderly Christian Couple who run a guest house in Cornwall and two gays.The couple have always maintained a strict policy of only allowing married couples to share a double bed. This policy is articulated in their brochures.
You can guess what happened, the happy couple turned up, were offered alternative arrangements but went off in a huff, and initiated a taxpayer funded discrimination suit.
And you can guess the rest.