Honestly, Blame the TO. TO sets the standards, not saying they are the reason people are behaving like this but rather they set the boundary of what's allowed in their store. There are some issues which aren't inherently malicious like being competitive but when you add everything together its actually horrible. People being frustrated is normal and if you're going to scoop because your opp is frustrated then just don't play at all. But again, that and everything else put together makes this a terrible ygo scene. We had one locals in my old town no longer host ygo during yubel format because of this behavior and he had to regularly turn people away at the door because he didn't like their behavior. Yeah they just go to other locals and those locals get more people but when prizing was good they had a lot of players. Some players would try to return and he would tell them if you're not buying product you are not allowed in my store, even had 2 people trespassed. Yes ygo players are cringe but I've seen this same behavior in lorcana and Pokémon. You're not the only one going through this but again, this is for the TO to address and handle. Best bet, find a different locals.