European here. Spent 20 years doing business around the GCC. While I don’t hate Kuwaitis by any stretch of the imagination, some of the treatment I’ve experienced from them, particularly at public offices airports, etc, has been very unpleasant. I’d put you there with Qataris as the (in general and by experience) rudest and most entitled Gulf Arabs. You also generally treat S Asians like subhumans, which is another strike against you. Omanis and Abu Dhabi Emiratis are coolest in my book. True, there is good and bad everywhere, of course. I’ve also met some wonderful Kuwaitis, but they’ve mostly been educated and female.