Are you seriously trying to take the piss?
You say you go to these marches peacefully (and it seems you belong to groups) so why would you need to protect yourself? Just curious?
It Seems a bit strange to carry obviously some sort of protection to a march, doesn't it? I have been to many away games where there has been trouble but normally it's the ones looking for it that find it? I have never taken something for protection. I have been on a huge number of protests all pretty much peaceful, in recent years protests have become targets from elements of society, we do all we can to be vigilant both beforehand and during protests so we can avoid these groups. Other than stopping protesting, which isn't something we should have to do, there is no way to totally avoid these ****s. So if you had a group telling you that they are going to beat you and then rape your mrs, if you had seen the results of other incidents where they had attacked kids, women, victimised groups who had no desire to engage with them you wouldn't want to protect yourself? Really? I'm calling bullshit on that.
I'd say I've answered that quite clearly, you are clearly on the wind up or looking for an angle to push an agenda.