The problem is though that posts like this and thinking like this is actually adding more fuel to the fire and pushing more people to the right.
Accusing people of being naive for not thinking that the flags are racist is also not great. Its a way of belittling people who may hold a different view and trying to shame them into conforming with group think.
Labelling the England flag as racist is deeply problematic and complex. It has been associated with far right groups but it also has a deep rooted cultural connection to England and English culture. Vilification of one aspect can cause defensiveness and a greater move towards the other, fueling a cultural shift towards the right.
Just as the Democrats didn't realise vilification of MAGA supporters solidified support for Trump and paved the way for him to win, a lot of people don't realise that the same behaviour here regarding the England flag will open the door for Reform to walk through.
The more people draw attention to it the more it will be become magnified.