The original link to the economic study from Pinketty certainly does.
And the claims in the link which are not backed up with charts and sources contradict data here:
https://www.advisorperspectives.com/dshort/updates/2016/09/15/u-s-household-incomes-a-49-year-perspectiveOver the last 50 years real incomes for the bottom half have grown 25% to 30%.
More importantly - the headline and the focus of the link is on the share of total income which is totally irrelevant.
What matters is real income growth.
Provide data that compares real income growth in France vs US over time and you might have a point.