not necessarily those that are already the world highest like income taxes

Income taxes are actually pretty low in France, even if you include the CSG (they get average). But combined with some of the highest social contributions, you get a big burden. I have a graph somewhere...

Here you go:

Note that this is for a single. Families are much better treated in France than elsewhere, tax wise.

In the long run, we're all dead. John Maynard Keynes