Then was then. (Besides you overlooked their interference in the French-Indian War) We've already paid their piddly contribution many times over. I wouldn't mind them so much or their objection to the Iraq war if they weren't so bloody underhanded about it.
Besides, French bashing is a great sport. They've bashed us for years. What are they going to do? Not buy our products - yeah, like that would make a dent in our economy. Not buying theirs is a lot more fun. Even more fun when they whine about it. They've never wanted our friendship, just our money. Now they've got neither.
And the XYZ Affair.