Hawaiian natives voted to become a state seeking protection from various robber Barrons who were exploiting their land. Prior to that the US government generally took measures against the plantation owners at request of the locals. Yes, that imperialism kind of originated from the US, but it wasn’t like an invasion and subjugation.

Puerto rico was ceded to the US after ot defeated Spain in the Spanish American war. It was quickly granted a form of pseudo independence, but then voted for protectorate status over full independence in the early 1900s.