The Model
US influences (NGOs, on-ground military advisors, CIA (incognito perhaps)... etc etc., followed by some stronger indirect or direct force)... leads to regime change... then install "our guy"... defined as someone who "says" he/she opposes "Fill-In-The-Blank", so we say fine, okay.
Followed by gradual fragmentation, unrest, maybe outright chaos, all measured in months or single digit years, often (as in the past) decades.
Leading to... things no better than before. In the meantime, someone profits, the US gov't gets to enjoy the Thrill of Exercising Power (like sex, or any kind of drug-induced high)... ah, the thrill, to command 10 aircraft carriers and the mightiest military force on the planet.. You don't even have to use them... with them behind you, you can order people around, tell the what "they should do, better do, need to do, what we 'expect' you to do"... and so on.
The Moral of the Story: We act, and nothing is any different later on, and a whole lot of people suffer, including die. Civilians, people of all kinds.
If we all put down our Starbucks and looked up and saw it for what it is... maybe it would change. Not sure. But it begins by taking off the blinders of this Matrix we live in and admit what political power is and does, even in America. I love the country, but the government is not the country. You, me, our neighbors, the people... we are the country. And we are moral and ethical and not corrupt. But political power changes that when the power consumes those holding that power.
I don't know the answer.
EDIT: Forgot to add one more thing. In carrying out "the model" of intervention and interference in the affairs of others ... we create (more) enemies.