The one person right now who you might have expect to be called to speak in a debate of racism in the House of Commons would be Diane Abbott who's subject of a high profile incidence of racist language from a Tory donor... yet the Speaker said that despite Abbott rising over 40 times to speak during the debate, he ran out of time to call her.
If you wanted to confirm to the average voter that the political system is racist, this would be a good way to do it.