I doubt Pence would accidentally put American international agreements, institutions, and treaty organizations into question with weird rambling tweets. I also doubt he'd find any value in antagonizing Mexico over a silly monument to xenophobia.

Pence is no foreign policy wiz but I'm not worried about him precipitating huge geopolitical shifts against America's interests.

Pence is predictable. Diplomats can build plans around predictable. You can make deals, treaties and alliances with predictable. Your opponents know what to expect from you.

If nothing else, it at least provides some stability.

In other words: Who knows, because we don't know what Trumps foreign policy will be tomorrow. And every day will be like that.

As far as I know he's more or less the proverbial generic Republican on foreign policy. Which sounds a lot better to me than Trump's uneducated unpredictability.