It's not about nukes. It's about the threat of having missiles and troops on your borders. Why would anyone expect Russia to be different. Damn, a dozen Cubans setup shop in Granada and did we let it go? Did we and do we still about what goes on in South and Central America? Of course. As early as the beginning of the 20th century we setup a hands off policy;
" President Theodore Roosevelt then added the “Roosevelt Corollary” to the Monroe Doctrine: “in the Western Hemisphere the adherence of the United States to the Monroe Doctrine may force the United States, however reluctantly, in flagrant cases of wrongdoing or impotence, to exercise an international police power.”
23 Thus American policy in Latin America, at the beginning of the 20th century, explicitly justified unilateral intervention, military occupation, and transformation of sovereign states into political and economic protectorates in order to defend them against European interventions that might threaten U.S. national interests and security."