There is a Jamaican nugget of wisdom: “If yu cyaan ’ear, yu mus’ feel.” It translates to “those that don’t hear must feel”: in other words, if you fail to learn from caution you end up learning from consequence.
Had Britain “heard” the screams of caution from Black people about the racism and, therefore, unsuitability for office of Boris Johnson, there is a good chance Britain would not be “feeling” the pain and shame of demise we are right now.