In the U.S.A if you took EVERYTHING from all of the billionaires, there are ~700 of them you would net under $5T in total [1]. The existing debt of the USA today stands at a hair under $28T [2]. The estimated budget deficit for the next 10 years is $1.2T a year [1]! You do realize you can lop off all the heads you want, take all the money you want, and you will not have solved anything! You would still be a debt slave :( Raising taxes by itself will not solve anything you ALSO need to decrease spending, but no one wants to hear about fiscal responsibility.
The heads that need to go are those of corrupt politicians.
[1] https://inequality.org/great-divide/updates-billionaire-pand... [2] https://www.pgpf.org/national-debt-clock