Lol, Mayweather carried McGregor for ten rounds, the difference in skill level was painfully evident. Mayweather is 49-0, a five time world champion in different weight classes, silver medalist in the Olympics. The general public with no knowledge of combat sports have been fooled into thinking a crude and clumsy cage fighter with no Boxing experience had a chance of beating him. It was never going to happen unless McGreggor threw a lucky punch and even then I doubt it would have knocked Mayweather out as I've only seen him wobbled momentarily once in those 49 fights he had previously. Mayweather is a master Boxer and defensive genius, this fight was all about giving the public what they wanted to see and making a lot of money.
Put it this way, who would win if the world Squash Champion came to Wimbledon to face Roger Federer? Would you give him a chance becaus he knows how to hit a ball with a racquet?