It absolutely is relevant to the discussion. Many Americans are ungrateful and envious of the Americans wealthier than them, in spite of the fact that their own living standards are still far far better than the majority of humans on the planet. And some of those hypocritically think that the wealth of richer Americans belong to them, but would never consider giving their own wealth to people across the globe who are poorer than them.
replyThe people who want money from people richer than them never want to give up their own to the people who look to them with the same eyes.
replyThat is a false claim. Voting for taxation to support the less wealthy is almost a defining feature of what it means to be 'left'. Voting for taxation to support international aid and outreach and healthcare is very common. The 'left' supporting colonial- and war reparation payments is common. Donating money to charity, tithing, nationally and internationally is common across the board.
reply> "from people richer than them"
You may want to spend some time reflecting on where that money came from. How much lobbying and market manipulation, employee abuse, bullying, exploitation, wage theft, government (taxpayer-funded) grants and infusions of cash, bribery, corruption, dark patterns, law-breaking were involved, and how much tax avoidance and evasion was involved.