What financial problem contributed to the end of the Roman Republic?

Enslaved laborers wanted to be paid, and landowners did not agree to this.
Small farms failed due to bad harvests, which caused workers to lose their jobs.
Military spending created too much debt and forced spending cuts in other areas.
Unemployment grew as landowners replaced paid workers with enslaved laborers.

In my honest opinion , i’d say franklin d roosevelt was a president that impacted our nation , i say this because fdr is voted among top three best us presidents and he was the longest serving president by 3 terms , usually presidents only supposed to have two terms increments of 4 years , equivalent to 8 years total before election time. and he established the fdic , through the 1933 banking act and he established the us , social security system , during his presidency, and established a national minimum wage , through the fair labor standards act , fdr led the allied coalition to victory in wwii and he played a major role in the creation of the united nations.