The article opens with this subheadline and lede:

There might be better ways to help low-income families than vastly expanding the child tax credit
The child tax credit is one of the few government entitlements that both political parties want to make more generous.

The problem with the child tax credit, though, is that rewards folks for not working—the credit is fully refundable, meaning that families get the full handout credit even if their income is lower than the credit.

My thought is this: switch to a low, flat income tax rate regardless of the source of income. That will leave more money in the hands of all American citizens—more than just the credit’s value—it’ll leave that money in our hands throughout the year, instead of our having to struggle through all twelve of the months of the current year, plus tax time, in order to get the money back in the following year (only a fraction of the credit is handed out in installments).

And it’ll encourage getting more work, or at the least reduce the government’s handout-induced discouragement of work, by leaving that erstwhile tax money in the hands of folks who work and pay taxes. Further, that erstwhile tax money already is coordinated [sic] with income; there’s no need to play games with indexing.

The problem with that, though, is strictly political. The move directly challenges the Progressive-Democratic Party’s addiction to constantly raising taxes. The move also would greatly reduce Party’s ability to curry favor and buy votes with credits and circuses’ handouts.