I don't want to do math with flawed data. Every minute of uploaded content is not going to face copyright strikes, and does not need to be reviewed.

80 years, or 700,000 hours.

At $10 an hour that would be $7m a day, $2.5b a year.

Alphabet's revenue is arround $144b a year, so it would cost 2% of revenue to review every single uploaded video. Clearly that's not going to be needed -- you only need to review those which

1) Have a claim by $BIG_CORP

2) Have a counter claim