The all-star puts up a solid 27 points a night. What’s not to love? That’s a rhetorical question, of course. When Irving demanded a trade from the Nets on Friday, the news was greeted with eye rolls, groans and Stephen A. Smith calling it “idiotic.” Followed by a dismaying curiosity: Would anyone want the controversial guard? Here’s why the Lakers, desperate to salvage their season, would be the obvious play — and why it would be a mistake.