If you produced all the USA's electricity in a year with fusion and collected all the resulting helium with 100% efficiency, you'd have collected less than 1% of the amount of helium we go through in that year.

A naive translation (not checking facts in any way):

Converting 100% of power generation in the US to (deuterium-tritium) fusion would result in 200,000 cubic meters of helium generated per year. But the US currently consumes 40,000,000 cubic meters per year.

Simplified: If you magically switched every power plant in the USA to fusion, they would make about 200,000 cubic meters of helium per year.

But the USA currently consumes 40,000,000 cubic meters of helium per year.