It's a perfectly fine opinion tbh. The state shouldn't censor people views no matter how awful those views may be. Also it should be my right as a citizen to decide what views I listen to. It seems rather insulting to the german people that it's government thinks it should decide for them what is and isn't acceptable.
Few remarks on that - I find takes like this too simplistic. Not because there aren't any problems with censorship, but because of how unproblematic the free spread of hate speech and Nazi propaganda (which is what Holocaust denial effectively is) is treated to be. This strikes me as very naive, and all the more so in the specific context of Holocaust denial in Germany.
Comes across as a variation of liberal free speech ideology tbh, including the characteristic problems and fallacies. Calling hate speech 'views' or 'opinions' really is depoliticizing language, and unlike the popular saying, it does matter how 'awful' or 'reprehensible' public utterings are. Discourses have real-life consequences - don't think I need to expand on this here.
As for "the German people shouldn't be patronized by the state" - it's not that simple either. There's too much post-NS history to go through for both German states, but I'd say the far-reaching delegation of power to a technocracy - characteristic for both representative democracy and state socialism - actually played a civilizing role in the process. Especially early on.
Sure, 2021 isn't 1955 anymore, but that's the historical context of these taboos. (Even though Holocaust denial in particular was only criminalized a good deal later.) And with the murderous surge of neo-Nazism of the past three decades, this issue isn't just a thing of the past. I don't have any numbers, but I don't think you'd find a lot of support for legalizing Holocaust denial in Germany today, outside of the typical (far) right clientele.