Cuba in the 1890s was suffering under Spanish misrule. We got rid of the Spanish--now they have Castro.
Wilson didn't think the Kaiser was a nice guy. After a few years of a weak democracy, Germany wound up with Hitler.
JFK got fed up with Diem. After Diem, some regimes that were no better, then a Communist dictatorship.
Jimmy Carter thought the Shah was mean...so now they have had 32 years of Islamic theocracy.
Muzorewa wasn't radical enough for Carter, so he was pushed aside in favor of Mugabe...more authentic because he was an outright Marxist.
“Cuba in the 1890s was suffering under Spanish misrule. We got rid of the Spanish—now they have Castro.”
Bad example - Castro is 60 years post-Spanish.