Nope. Make him see Australia. It is quite a lot similar in basic ways to America. The people are easy for even a dense Texan to understand and relate to.
The women work less/"missing hours" issue is resolved by this, UP; Maternity Leave IS PAID LEAVE in Oz, like it is in every civilized nation on Earth 'cept 'Murrica. Getting the next generation off to a healthy and well-adjusted start from birth is an actual Family Value worth paying for. Employers there do not begrudge it.
The senior manager salary difference shown is huge, comparing apples to apples, but the apples with stems on them get a third to half again more than apples without that appendage. This was found to be after conducting an absolutely massive study of nearly half of a modern, English-speaking capitalist democratic nation's workforce over a 10 year period. How the fuck do you argue against it? There's no meaningful cultural difference for this specific point, there is no language barrier to understanding the report or data.