There's nothing stopping them. They could contribute a token amount, say, create the '1% club' or similar (probably needs a better name). In any case, you hav

There's nothing stopping them. They could contribute a token amount, say, create the '1% club' or similar (probably needs a better name). In any case, you have to ask yourself why they're advocating for this stuff in the first place. These billionaires have international wealth. Raising the taxes fom them in the US is just going to drive capital overseas. It would make it harder for US-only business to compete with the international conglomerates if US taxes were raised. If you want to see improvements domestically, it has little to do with income taxes. You need to raise tariffs and outlaw subsidies to businesses ("I'll give you 50B to build your new stadium in nowhere's-ville"). They'll be forced to invest domestically, pay domestic wages, pay for the infrastructure they need to support their businesses, etc.