Average American eat around 60 pounds a year, typically you eat less than a full pound when you eat so yeah they probably eat more than once per week.
https://ourworldindata.org/grapher/per-capita-meat-usa
Given the $112 subsidies per year above, that would add $2 per pound of beef, that would slightly raise the price not balloon it to 30-40 as poster claimed. So he was bullshitting.
Average includes vegans, and I'm pretty sure they eat it less than once per week. It’s just how much meat divided by population. The previous comment shows that the consumption is not anywhere close to equally distributed.