Amazingly enough SpaceX actually have
the video on their website.
They also posted Buoy/Starlink video of the booster coming in to do a soft landing on the sea. But that was
on X only I think.
That booster you see landing is the height of a 23 story building and weighs around 400 tonnes.
But this is not about saving the planet or even most of us on the planet. It is about producing self sustaining outposts off earth. If you think about self sustaining, that's a pretty daunting task with our current technology.
To answer you question, the goal is 1,000 ships which can carry 100 people to Mars, plus also equipment drops. That's ten journeys to Mars for those 100,000 people to get to the 1m people suggested as required to maintain a self sustaining outpost. The rest of the 7bn, 999m? Take your chances on Earth, they may be better than Mars.
What is happening right now is a level of change in our ability to reach and utilise space which we have not seen since the Apollo program. I don't count the Shuttle, essentially it changed nothing.
Before you also rubbish this advancement, this also drives the ability to reach the Asteroid belt and that area has resources such as Platinum in accessible quantity which can change things dramatically on earth. Such as use in catalysts which drive many of the advanced materials which are being trialled for reducing CO2 emissions.
It also has a very dramatic change in the terms of space based power harvesting and the possibility of bringing it back to earth. If you took Elon out of this you would be lauding the progress. You are falling into the same trap that so many others have. If not for Elon nobody would even be trying this. Blue Origin (Orifice comes to mind)? Don't make me laugh, the also ran who wants to take the "not Elon" limelight with second rate products claiming progress and invention.
Time to get with the program. You are a very clever and very capable person WM. Go and look up the full flow staged combustion rocket. Look up why both the USSR and the US failed to create a working one. Go and look up the N1 and understand how fiendishly difficult it is to control a rocket with over 30 rocket motors on the bottom of it. Then go back and watch that video. Flight 4 of the most advanced and incredible piece of technology that ever launched into space. This rocket has fully more than twice the liftoff power than the SLS without a single SRB.
This is the most ground breaking change in our world since Apollo 11. People are missing it through nothing more than Elon Hate.