No one. Various organizations of various sizes and views are leading themselves. One person started the Women's March but she just made a post. She didn't make thousands of women respond.
No one is in charge. This is not an alternative fact. It's that little bit of reality that right wing authoritarian followers fear the most, I think.
People whose ventures into thinking go no further than being a cog in a hierarchical machine don't get the concept that not everyone is such a slave, and that crowds of independent humans could come together for a purpose without needing a leader to make it all happen or direct anyone's movements. We direct our own movements. There's no one "at the top" to attack. We're just the People of humane values who are not addled by right wing cognitive disease and who recognize the current threat of fascism for what it is.
The election was carried out according to the US election laws whether or not the system is acceptable
There is nothing wrong with protests and there is nothing wrong with critical comments about those protests. They are allowed to protest
Do you know who is leading these protests.
You should tell this to the other WP, because he keeps insisting that there was something wrong with these protests.