No, what form of Democracy, and by what metrics? Why do you say bourgeois dictatorships are better?
Again, no. You are entirely missing the point. People will not be swayed by learning Socialism is better, without material conditions matching said ideas.
Listen, I know you're trying your best, but only reading the Manifesto, a pamphlet to energize the workers, does not make you equipped to discissing if Marxism is outdated or not. I'm not even gatekeeping, you are making numerous false assumptions about Marxism that I have tried to point out.
Specifically, you are falling for the well-studied failures of Utopian Socialists like the Owenites, described in Socialism: Utopian and Scientific.