Democracy means letting people with other world views exist in peace.
Please consider how you want to be treated by this world and how you can make your own positive impact on humans around you.
I am an atheist myself and will vehemently defend secularism but your comment boils down to hate and demanding others have the exact same beliefs as you do.
You cannot honestly say you support both secularism and this law at the same time. Either you do, or you dont.
And this law does exactly what you said: impose a belief upon others
No, it stops you from burning a religious symbol in public. Secularity means that state and church are separate, which is a different matter. A lack of secularity would mean you can go on trial for not following the word of some god e.g. for loving someone from the same sex.
These are terrible and should be fought.
Bu this particular law is stopping assholes from being assholes.
Book-burnings also had a severely terrible history in the 3rd reich and are nothing but demonstrations of power, hate and close-mindedness.