However you dress it up and IMO, you shouldn't address other users like that and it is certainly against the rules of the forum. However I wouldn't report somebody for it. I actually thought that when you had calmed down you might think better of it and apologise. But it looks like you still think it is justifiable.
For clarity; the phrase 'who made you god?' is IMO shorthand for 'what right have you to impose your will on other people?'.
The difference between our arguments is that you actively want to stop people from doing something that is important to them (going on a march). I don't. I am very happy for you to carry out your remembrance as you see fit, that is your right. I don't, for instance, want football matches to be stopped on November 11th. I am also equally happy for demonstrators to demonstrate if they want, that is their right. I've probably wasted too much time arguing on this but stuff like this is important to me because it goes to the heart of our freedoms. We live in a free society and sometimes others will do and say things that we don't agree with. We shouldn't try to stop them if it is within the law - this freedom is one of our great strengths as a country and something we should be proud of.