Thanks for your reply! I often do not realize that it is not easy for everyone to organize such marches. The advantage of Belgium is that it is a very small country making it a lot easier to organize something like this. In addition, we have fairly neutral media that tries to report in an objective way. This is in contrast to the US, where you are dealing with two large camps that seem to be each other's opposite.
I think that this shouldn't hold you back though. Online, there are so many possibilities to reach like-minded people. Sometimes certain things become so big that they are impossible to stop!
By the way, you have a nice writing style. Ideal for refining my English even further. Already following you.