Bit defeatist hey?!
I volunteer for them and there are 300 coaches coming from outside London, the police have agreed to a potentially quite controversial route as they have acknowledge a huge number of people are going to turn up. Police are projecting over 100,000 organisers 250,000.
You can only try.
Women are disproportionatly affected by the cuts and I think have an obligation to attend if they can. Or support in some way anyway.