The debate is being had here, on twitter, and at meetings up and down the country, some of which have been protested, and a couple moved due to the venues not wanting it, but they have happened. For the last six months or so there have weekly onslaught against trans people from those having this debate from their newspaper columns in the national press, it is currrently being talked about non stop on Women's Hour, The Guardian has run an editorial about it, there have been billboards erected and sticker campaigns, debates in the House of Commons, a government consultation in both England and Scotland, almost every major television station has featured documentaries about his debate, there are dozens of blogs and websites purely established to have this debate and thousands of people on social media having this debate.
I'm not entirely sure what the people claiming to be silenced actually want. It seems they won't be happy until loudspeakers are set up on every street corner booming out slogans that women don't have penises and transwomen are men is carved into the moon.