Who do you have a grudge against? It doesn't need to be a good reason, I would argue it's probably better if you have a petty reason.
Mine is Uniqlo. Not really for the clothes but this brand brings out the worst in internet clothing people. No it's not quality, it's Japanese Old Navy. The clothes don't fall apart instantly, because clothing from any brand does not actually fall apart after the first wear. This is a thing that people made up. A $50 Uniqlo shirt looks exactly how a $50 shirt should look and everyone can tell you spent only $50 on it.
Someone will write a 5000 word essay on clothing quality and labor standards and manufacturing processes and then end it with "that's why I buy from Uniqlo"
Uniqlo fetishization is weeb shit in disguise. Change the country of origin and everyone would clown on them so hard.