I am not suggesting anything that is not so - that that it is neither correctly understood by, it seems, most Catholics and Protestants is one of the causes of the bitter and sad division - btw wincam knows this and he is not even infallible
Yes, you are. You are suggesting that the Pope and the Magisterium are not infallible. Maybe you worded your question wrong. You listed four and you said that only one is infallible. Is that what you believe?
even the first Pope had to discovered that flesh and blood cannot reveal certainity but only God can - no Pope of himself is infallible all the time but only ex cathedra via revelation by the Holy Ghost and no magisterium either except that God is finally where two or three or more are gathered together in His name - other than this some Popes and Bishops have made some awful blunders and mistakes and have even contradicted one another imho - wincam
According to the usage of the word infallibility, which every Catholic should use, the Pope is infallible as are the Magisterium. This meaning of infallibility doesn't mean that the Church claims they are infallible all the time, but only when solemnly pronouncing doctrine. In that sense, which you must not deny in order to remain in communion with the Catholic Church, the Pope and the Magisterium are infallible.
You should probably study this more wincam. Claiming that you are Catholic is incompatible with going out in public and claiming that the Pope and the Magisterium are not infallible.
Also the infallible statements are not "revelation of the Holy Ghost". Anything that is declared infallibly has been believed for time immemorial, and is not a special revelation.
And because the concept of infallibility doesn't suggest that those infallible people cannot make blunders or even everyday errors in their teaching, the fact that there have been blunders made shouldn't be part of a discussion on infallibility. The two matters are completely separate.