You are making assumptions on a system you know nothing about (otherwise you wouldn't have written what you wrote).

Read about how this tax work before complaining about it, please. It's only for generally big amounts of money, and your mortgage and other stuff is subtracted, making it a non-issue for almost everyone. And you can fine invest the money instead.

Indeed. Why, if the government applies small taxes to cash savings of over 125k, I just won't save at all!

Wait, what?

Which, of course, is the basis of modern macroeconomics -- keep people spending as much as possible.

Which is how you keep the economy growing.