Remember 2019? Johnson was obviously toast, without a majority, the opposition could have pushed for some form of PR and other policy concessions. Some MPs even got assistance from foreign politicians to try to overthrow the UK government. The election that everyone knew Johnson would lose, resulted in his win, with a majority of 80.
Now folks want rid again, meanwhile the Labour party is confused as to whether women have a penis, cervix or both. Whenever the right time for change is, it isn't now.