Do you now understand why? Ofcom would have @GBNEWS off the air if they could get enough evidence of unbalanced political view. This would be totally supported by Starmer. One way to show that balance is to get shouty people. 
It is different in the #USA where that balance was removed so you have total Red, Blue Stations etc. 
To a degree this should happen here - the BBC would not change from the Left or Anti-Trump @POTUS.