[P.O.E.]

Why doesn't someone buy, market, sell and advertise products made in America to counter Walmart-ization? If there's enough money in it, someone will.

I try to frequent the mom-&-pop stores downtown as much as possible, but it isn't always possible.

[Protagoras]

If there's enough money in it, someone will.

Bingo.
And the reason they don't is that there is no money in it. Americans value their freedom and money more than some ill formed idea of patriotism.