I've been watching Sentinels players stream EU ranked games for 2-3 days now. Their teammates are so much more toxic compared to any other server I have experienced. They keep getting hate from diamond players even though they don't use streamer mode and everyone knows who they are.
Their normal streams in NA servers are much more fun and wholesome.
EU much more toxic than NA I can say with surety now.
(I'm not biased towards either NA or EU because I belong to neither of them)