...First the Mona Lisa's beauty would be diluted then its meaning - the art in it - would be destroyed (not irreparably, you could always take the Mona Lisa out again and put it where it deserves to be - on its own, in the context it deserves).
I love the fearless girl. But the Charging Bull shows the energy of progress, of the economy, of ambition, of growth. Not something I would want anyone to stop.
The advance of the bull's charge means we are all better off, means our children will be better off than we are. It means progress.
...If anything the girl should be riding the bull, pointing her finger forward! Yes a little girl can ride and drive the progress, can lead the charge of progress!
...but she should not be there to stop it. They could have bought an old nazi tank and put her in front of it, and the Fearless Girl would have had exactly the same meaning.
Let the Fearless Girl tell her message. Let the Charging Bull tell its message