Honest question, why? I’m not saying the guy doesn’t sound like an astroturfing attempt, but not because of those 50%. When I look at my payslip, I see that the money I get is 50% of the money I cost my employer. And that doesn’t include VAT I pay on everything.
I am pretty aware of what those taxes pay for. But it doesn’t change the fact that they do exist and they are high. Regardless - in my country, lots of people are always complaining about high taxes, so whenever I see someone mentioning them, it doesn’t imply that they’re American.