The general response to broken trust is to trust nobody. Americans breaking trust will make it less likely others trust Russia or Turkey or China, not more.
I don't disagree with what you state, but I don't think most who are surprised now are ready to ponder systems of governance and cooperation that require less trust than those most used now so i won't go there here.
And I don't disagree with what you state, but I'm sad that we're going to have to shift to a system of lower trust. A high trust society is a large part of what made America and the West great. My dad did business with handshakes instead of contracts. MAGA wants to tear down bureaucracy and regulations? Regulations and bureaucracy are required for the low trust society they're instilling.