I think you're less free than you think you are. Do you have the freedom to lose your job? Because millions don't due to e.g. losing access to health care (to name a popular / populist talking point). Do you have the freedom to vote for a representative that aligns with your points, or are you forced to vote for the lesser evil or abstain?

I don't believe all political parties have a right to exist, because some parties are anti-democratic, yet abuse democratic systems to gain power. The current president of the US and the organization that planned the current administration's steps are anti-democratic and want to, for example run for a third term.