Getting people to protest excessive taxation is difficult to do when that vast majority of those who actually pay taxes do something that most war protesters do not do.
Here's a picture of a demonstration in Leipzig in the GDR, before the Berlin Wall came down:
These people went on the streets not knowing whether they would be handcuffed and thrown in jail for an indeterminate time, whether they would be sentenced to decades in prison by a monkey court, or whether the demonstrations would be ended by Russian tanks shooting up the demonstrators like in earlier protests and demonstrations in Eastern European countries.
Saying "I have to work, I have no time to demonstrate" is a lame excuse. All it says is that you don't really care about the issue.