The numbers from your link are:

The top 1% pays 24% of Federal taxes, and the bottom 50% pays somewhere between 7% (bottom 40%) and 16% (bottom 60%).

Yes, that sounds about correct. It's a lot more than "bottom 50% pay no tax".

Also I'm unclear if that source includes only the "employee half" of the 15% FICA.

That’s a crystal clear sign that the top 1% have way too much money.

Yeah this argument is so silly: "the top 1% pay 60% of income tax" oh okay, so as they get closer and closer to escape velocity from the rest of us, that number will climb to 1% paying 70%, then 80%, then 90%, so your argument to tax them gets weaker while the functional need to tax them gets stronger.

Brilliant!

Thank you for understanding what I was trying to say. :)