I'm definitely not the first one to ask the question. This article is a pretty good explanation of the problem. And there's no great answer right now. There are too many variables to credit the ACA with everyone insured now that wasn't then in any estimate.
I like my source, which you dismiss, simply because it doesn't come from the Obama Administration which wrote, supported, and had to defend the Affordable Care Act. They also had a history of greatly over estimating the amount of additonal insured going back to 2011 when they said ACA would cover 32 million people.
The source I chose comes from Goldman Sachs who stake their company's financial well-being on being objective and honest. And they certinaly have a bias, but when you combine that bias with the administration's is where we have to be subjective.
I do find your tone to be condescending, and I don't like being spoken to like that. Maybe it's the tone of the internet, and you don't mean to do it, but you come off as very know-it-all. You basically told me to behave the way you like when you threatened to block/mute me again. If you feel like you need to block me beacuse I'm the type to address that directly, that's certainly your right.