All those previous tournaments were in different countries and at different points in time, I'm unsure if they will allow you to forecast on what Russia holds. I obviously hope that you are safe but my worry is based on the police more than anything. There will be collusion between the Russian...
you've got two possible outcomes, one where lots of our hooligans go and one where few go.
In the case of the former, you just have to hope that they are targeted by the Russians and/or the Russian police. The latter is scarier, the Russians will be looking for a fight and they will go looking...
just as an aside, if you've never seen this it's called Battle of the Nations. Very strict rules (no sharp edges and all kit has to be authentic), Russia and Israel regularly do very well as they are all ex forces. From what I saw of some in France I reckon the Russian hooligans are as well...