A member asked if this could be done.
There is one method.
Select all the categories as Favourites except the Politics category. Then use the 'Faves' link on the main menu.
That thing you did. Do it again.
To be honest, this tickles me...
All you have to do is not read them!!!. If someone finds them upsetting or offensive then it means they READ THEM!!!!
Filter them out by scrolling....
Never regret anything because at one time it was exactly what you wanted.