I do not hold according to Hacham Ovadia on "Zionism", or "Israel related" issues. But I still think that it is a hillul hashem for the non jews on the forum to criticize this holy rav. Harav Mordechai Eliyahu, also former chief rabbi of Israel disagrees with him. Do you see him making public statements about Harav Ovadia saying that he is wrong? And for a religous jew to say that Harav Ovadia is dead wrong on almost all of his ruling, as you did, is upsurd.
It says in Mesekheth Horioth that if a Talmid hamagia l'Horaah, a student who is knowledgable enough to give instruction to others decides to rely on the Sanhedrin and do something that the Torah says is forbidden,(which the Sanhedrin mistakenly beleives is permisable), that student must bring his own Qorban and cannot rely on the Par Healam davar that is brought for all o the people who acted according o the Sanhedrin's mistake.
Now this is talking about a Sanhedrin which has very real power according to the Torah, not a Rav who only must be listened to by his students. Even then a Sanhedrin can make a mistake and if someone who knows better decides to transgress a prohibition that the Sanhedrin has mistakenly prohibited, his sin is on his own head.
I can therefore not say that I will ignore what I have learned both in Maimonides and the Talmudh and the Shulhan Arukh and rely on Rav Ovadia's Pisqei Din. If I do, my sin will be on my own head.
I noticed that you said that you don't agree with him on Zionism and Israel related issues, that presumes that you agree with him on everything else and you accept whatever else he says without looking up the sources he is basing himself on. I suggest that you do so before relying on anything he says. Because if he is willing to pervert the words of Maimonides so brazenly then how can we assume he does not do so in other issues?
As far as criticizing Rav Ovadia, I will repeat again my position. I don't think it is wrong for anyone to criticize his ideas. I think that it is wrong to call him a peice of drek or to intimate sexual proclivities about him.
I will always oppose that.
But to say that he is wrong, is not a problem. We find Rabbonim in the Talmudh disagreeing with each other with very strong language indeed.
To paraphrase the Talmud, let me say about Rav Ovadia Yosef's ideas:
His words are like Smoke to my eyes and vinegar to my teeth.