Dude Larry Bird would still wreck today's league. Just because he didn't have Derrick Jones Jr's hops doesn't mean he couldn't hang, he's essentially LeBron's vision + elite shooting and handles in Joe Ingles' body (I know this is a very basic and lazy description, just trying to bridge eras). And Ingles was a guy who could handle defending elite, athletic wings.
Really, almost any superstar from any era would make it work in today's era. Patrick Ewing would be closer to Joel Embiid than Kevon Looney (no disrespect to Loon) if that's what you're trying to insinuate.
The thing I love about the great-greats is how they have insane accomplishments with their "weaknesses". Jordan set a NBA Finals record for threes in a half, and averaged double figure assists in his first ever finals, when he was known as a scorer who didn't shoot threes. LeBron isn't known as a scorer but is the NBA's all-time leading scorer. Greats are going to be great regardless.