You are hardly representative of the typical RCs here with that attitude, for be assured, the premise of ensured perpetual magisterial infallibility is the basis for their assurance of Truth, and for for their claim that the Catholic church was "divinely instituted," and which magisterium is what they require us to submit to.
Thus my questions to you, while if your basis for assurance of Truth is not as other RCs then you are not one them. Which is not a bad thing, and if you told me what your basis for assurance of Truth is (like perhaps the weight of Scriptural substantiation) then we could talk. ,
Only Protestants worry about the Magisterium.