Answer:
One of Hamilton's unpopular ideas was to repay the national debt.
Step-by-step explanation:
From farmers to Madison and half of Washington's cabinet, the opinion was that such a move would take too much money from the ordinary person and put too much money in the pockets of the East coast financiers who would then have amplified power while being the only ones to benefit. Another unpopular action was the chartering of a national bank. Today, repayment of national debt (or attempts thereat) and the function of a national bank (The Federal Reserve) are bedrock financial policy, realities that mitigate previous historical opinion of Hamilton.