I argue the exact opposite.
- Income taxes discourage work--harming the economy. Plus, as they currently are structured, they lead to drastic inequalities.
- Sales taxes discourage spending--harming the economy. Plus, they punish the poor who spend all of their money while the rich who spend little of their money are barely taxed. There are complex and costly non-taxed goods systems to help reduce the problem, but no matter how you parse it, the poor will pay a far higher percentage than the wealthy.
- Wealth taxes (such as asset taxes) boost the economy. Want to lower your asset tax bill? Buy some things. Major economic boosts will happen as the ultra wealthy buy all kinds of services to reduce their tax bills. They'd hire nearly every single feasible unemployed person to do more services for them to reduce their taxes.
I'd be quite thrilled with NO income tax, NO sales tax, but 100% tax upon death (with single* spouse/children under 18 survival exceptions).
Imagine your whole life without paying a penny in tax--ever. Only when you die do you pay tax and you won't care then, because, well, you are dead. That can only happen with asset taxes. *Single as in if a husband/wife dies, the wife/husband gets the property, but if the wife then dies it does not transfer tax free to future husbands/wives.