Some faucets unscrew from above the sink.
Maybe that is what is going on here.
Maybe not.
Meanwhile, if you slice or cut that big ribbed hose that supplies the faucet head, you will be able to pull all that big hose out and away.
Then cut the hot and cold supply lines, with the cutters I suggested, or by folding, or use your own ideas.
With all the lines gone, that horseshoe will be able to spin, and the faucet will come off.
Take a big breath, read everything above here carefully again, several times.
The answers are all there.
You don’t need any more answers, just get going.
Or hire a pro if you are confused.