Yes, the Irish did, and we do owe them a debt of support.

But it was the Orange Irish who fought in our Revolution, not the Green Irish.

Therefore in paying the debt to the Green Irish and clamoring for "Irish" independence, we are double crossing the Orange Irish.
"It is a curious fact that in the Revolutionary War the Germans and Catholic Irish should have furnished the bulk of the auxiliaries to the regular English soldiers;...

The fiercest and most ardent Americans of all, however, were the Presbyterian Irish settlers and their descendants." History of New York, p.

133, by Theodore Roosevelt.
Next, in what manner have the Green Irish incurred our thanks?
They made the ancient and honorable association of Tammany their own.
Once it was American.