> I just would rather give a yid parnassah but only if he gives me the products that I want.
“I want” seems like such a goyishe attitude, you should probably go to walmart lehathila!
Posters here raised good objections that this chumra is a kula towards the Jewish sellers, so you should probably ask a Rav …
In defense of the poster though – if you are in a place where a Jewish grocer raises prices thanks to the monopoly in the Jewish commuity, you might be justified going to walmart not only because it is 20% cheaper for you, but in order to break the excessive pricing for the whole community.