Strange comments.
If you live in Bangkok (or any other city) as your moniker suggests, then keeping shoes on in shops is normal. Bangkok is not Thailand.
I was talking about Thailand where I have found shoe removal is the norm. Even in our local immigration office until recently.
This incident happened on a small rural island. Not in a city.
'Open season on white skin people'? That is only a complaint from foreigners regarding the bad press that some white skinned people are creating.
Let's see.
Swiss kicking a doctor
Kiwis beating up a policeman
Russian kicking a pregnant lady
etc etc
I suggest that it is open season on entitled idiots who happen to have white skin.