They don't care about facts,bro.Sore losers already decided what they want to believe.
This is not a study, this is an article referencing one REPORT and one SURVEY. Plus looking at the founding of those results, there is high reasons to believe there are high dosage of bias involve, therefore making those results unreliable from a sociological standpoint.
The simple fact that none of those report define what "self made" is when it is sociologically very tricky to answer is saying a lot. (you just have to look at the survey from fidelity, "today’s millionaires did not consider themselves wealthy growing up", I do not consider myself wealthy growing up either.. I was still raised in the upper of the middle class, so this survey is simply bonker from a scientific and sociological standpoint.)
In reality, merit does not exist. Being rich is the result of the addition of your social, culture and wealth capital and a lot of luck. You can keep thinking that you will become a billionaire just by dreaming that other managed to do it by merit, but this is not how it works. You have more chances becoming rich by playing in a casino.
Study from capitalist to capitalist are doomed to be biased because the reality is not capitalism mate.
The reality is that wealth comes from priviledge.
But hey.. you are the proof that the far right will ride or die with capitalism...