WW II may have ended up differently with term limits, but that isn't the strongest argument.
Rather, I would point out that the Republicans were the first to advocate term limits. They did that in a blatant attempt to cut off the decades long Democratic congressional majority. Of course, once the 80's came and Republicans gained a majority, they shut up about it.
I am totally against term limits. Let the voters speak.
Important is election finance reform. Kill Citizens United and mandate sole public funding limits. That eliminates the need for term limits. Period!