1) That a wealth tax is good because you should be making more money than the tax.
2) That a wealth tax is right simply because it's affordable.
I didn't make either of those arguments. For 1 - regardless of whether you're making or losing money, any sensible wealth tax is marginal, only on net worth of amounts over $10mil (or whatever). So the very worst a wealth tax will do is keep you at that cap - you don't pay anything on your first $10mil (or whatever).
For 2 - no, I'm saying a wealth tax is affordable, so it's clearly not wrong based on that alone. I'd say a wealth tax is right because it's progressive, not unaffordable, and ultimately not significantly impactful on the people it would impact (rich people).
We need to have taxes of some kind. What do you think is the most "right" kind to have? Why is it more right than a wealth tax?