Some back of the napkin math tells me that SpaceX would roughly need to increase global Oxygen production by around 50% a year to meet the launch demands for this site Starship V3 has a 3.6:1 O/F ratio. Therefore LOX is 3.6/3.6+1 = ~78% of the fuel in weight of both booster and ship is oxygen. 5650 Tonnes full x ~0.78 = ~4,400 tonnes of LOX per launch. 30 Launches a day x 365 = 10,950 launches/year 10,950 x 4,400 Tonnes a launch =~ 48,000,000 Tonnes of Lox a year. 50m/90m tons of global oxygen production a year =~ 55% increase in global total production. Absolutely insane scales of industrialization. I also need to point out that of the 90MT/Y is for the total market ~88% is gaseous by market volume, if we Naively apply that ratio to the total global production then we get 11.4 MT/yr, so 48 + 11.4/11.4 = 59.4Mt/yr = 420% increase in global Lox production. Nice. LOX is probably closer to ~30-40% of global production though but these numbers are really hard to read in to in any serious technical detail but no matter how you cut it it's an INSANE amount of fuel production.

Fastest ever falcon 9 turnaround is 45 hours, even if they never beat this(They probably will by an order of magnitude but let's ignore that) Then 15 x 8760/45 = 2920 launches a year. Across all launch sites, or just 1945 a year for Starbase LA. ~5 a day. at 150 tonnes a launch that's 438,000 tonnes a year from all launch sites or 292,000 a year from Starbase LA. All launch sites would lapse F9s current annual mass to orbit every 2 days, and this site alone would lapse f9s annual mass to orbit every 3 days. Again, this is all assuming their cadence never beats f9(it almost certainly will by a lot)