The deadline for Obamacare insurance coverage in 2019 is Saturday and enrollment is lagging even as the Affordable Care Act (ACA) marketplace has stabilized and low-income families can obtain decent insurance for as low as $100 per month.

According to Crain’s Detroit Business, enrollments on Healthcare.gov were down 17 percent in Michigan as of a week ago.

Yet, the Michigan marketplace for ACA coverage features 17 private health insurers selling small business policies and nine companies offering coverage for individuals. Those participating include Blue Cross Blue Shield of MichiganHealth Alliance Plan of Michigan and Priority Health.

In addition, Michigan’s small-group rates increased for 2019 by an average of just 0.2 percent and individual rates went up 1.4 percent — the lowest increases in years. Meanwhile, the state maintains one of the nation’s lowest uninsured rates at 7.8 percent.

So, what’s going on here?

Critics say that the Trump administration has engaged in low-level “sabotage” of Obamacare participation after two years of trying to replace the ACA. The president was more upfront when he slashed advertising and outreach funds for the enrollment period by 90 percent.

Equally significant, major media outlets have largely ignored the sign-up period that began on Nov. 1.

Not only do substantial sign-ups reduce the number of uninsured, they create a robust customer base that keeps long-term healthcare rates low for Obamacare recipients. Yet, at the current rate, the 2019 percentage of uninsured in America will rise for the first time since 2010, and many of those without coverage will be children.

Last year, the number of U.S. children without health insurance jumped by 276,000 — to 3.9 million, up from a low of 3.6 million in 2016 — according to a report published by Georgetown University. It was the first increase in the number of uninsured kids in America since 2008.

“What was really disturbing was that the number went up even though the economy is doing so well. We would expect the number to go down,” one expert said. “Kids are falling off.”

Perhaps the most obvious reason fewer people signed up for health coverage so far this year is because they just don’t know open enrollment, which began in November, is ongoing. According to a Kaiser Family Foundation poll from late November, more than 70 percent of people who purchase their own insurance or are uninsured were unaware of or were misinformed about open enrollment dates.

To be clear, another potential reason for fewer reported signups is that people with Obamacare who do nothing and are automatically re-enrolled in the same plan aren’t reported to the federal database until the end of open enrollment.

In addition, enrollment estimates don’t include data from 11 states and the District of Columbia that run their own healthcare exchanges.

Still, the overall advances made by the Obamacare system – which is based on individual tax credits to supply insurance coverage — remain largely unknown to the American public.

A new study by the McKinsey Center for U.S. Health System Reform found that 25 new insurance carriers entered the ACA marketplace for 2019, while just one withdrew. Compare that with 2017, when 10 carriers entered but 90 withdrew.

Also, the number of U.S. counties with a single marketplace plan declined in 20 states between 2018 and 2019. While the current conditions are far from ideal, next year just five states will have a single plan in each county.