Because it's the truth. Don't buy into his narrative about the legislature. None of this is objectively or naturally being moved through the legislature - This is the GOP bloc acting as a singular unit being lead by DeSantis.
If it's not DeSantis, then why is he the one giving the speech about what is going to be done? Why is he talking about his actions and choices? The 'we the people....' narrative is just spin to try to deflect the arguments that this is a individual's fight. It's a ruse.
The bill is created in backrooms with people working in unison, put into a session CALLED BY THE GOVERNOR, done in a way to speed it through without contest (twice!), and then the GOP agree to advance it as a bloc.
Unless you are the Governor who happens to the the same party that controls both the state house and senate, a party willing to vote uniformly as a bloc no matter what, and you control the agenda, the schedule, and the votes to pass a bill, and sign it into law. Then yes, you can do this on your own. Which is what has been done here, multiple times.