To me Isolationism would be better for us and the world. I am against globalization, as I believe there will all ways be winners and losers in the world no matter what. It is not our job to make those selections in the world, and no where in the Constitution does it say that we have a responsibility to the rest of the world. I feel war should be saved until you're willing to do the unimaginable in order to win, and I think if more people felt that way then there would be a lot less wars the U.S. would be so willing to jump in to.
Policies changes whenever someone new is elected in this country,and meddling in other countries affairs is a long term commitment that must be adhered to by future policy makers. I only support these endless wars if we were imperialistic (Financial benefited), but we're not since that does not match our values.
Yes we still ended up in WW2 but at least we came out ahead in both wars. We wouldn't be the richest nation if it wasn't for the fact that we stayed on the sidelines and sold weapons and goods to the rest of the world that was at war.