Too Willing to Help?

A recent nonscientific poll on TheHistoryNet asked:

"Do you believe today's America would be willing to make the same level of sacrifices for other nations as was made during World War II?" We had a total of 2,683 votes for this poll. The results are as follows:

Yes: 23%
No: 72%
Don't Know: 5%

I wonder if this is correct. Before World War II, America was rather isolationist and seemed inclined to avoid foreign entanglements.

These days, we ARE the foreign entanglements, and a little dose of isolationist skepticism might have done us good in 2002 and 2003, and might do us some good now.

There was such widespread support for World War II precisely because we avoided getting in until the issue was crystal clear.