They get the "best" refs. I would argue that no team in the history of basketball has benefited more from the refs than the LA Lakers. Yes it was a missed call last night, but more often than not they make that call, especially on a superstar like lebron. That he thinks there is some systemic issue that is holding him and his teammates down is hilarious.
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Bottom line for Lebron is that his team isn't as good as it should be and he's frustrated. It's always the refs or "supporting cast / I don't have any help" with him.

https://twitter.com/tomhaberstroh/status/1499746034490261507