Vertaling van "people peddling those successes have a hard time convincing anyone " (Engels → Frans) :

People peddling those successes have a hard time convincing anyone, though.
Les personnes qui vantent ces succès ont cependant du mal à convaincre qui que ce soit.

One of the accepted reasons is that people have had a hard time getting on their feet and establishing themselves as successful families because the parents of those families are broken.
L'une des raisons admises en est que les gens ont eu du mal à reprendre pied et à fonder des familles solides parce que les parents de ces familles sont cassés.