The desires of the individual and the good of the crowd

I am alarmed at the decision of the London Corporation to allow transgender people to swim in the women's only session at the open-air pool at Hampstead Heath. I think they have got their moral compass confused. They think that a transgender person's rights outweigh those of a group of women. This reflects the crazy world we live in, in which a person can claim that she or he has a right to do what they want, even though it may affect another person. But, surely a person should be allowed to pursue their rights, as long as it is not detrimental to others. This last week I was visiting a hospital in Jerusalem and as I was waiting for my appointment, I had a coffee in one of the cafe shops. In the seating area outside were signs saying smoking is forbidden. But, one person was attempting to bypass this until I pointed out that smoking was not permitted in this area. If somebody wants t smoke or fulfil her or his personal preferences, then they should do so, only as long as it is not detrimental to others and to the crowd.