See if His Popiness says it’s true then all the Roman Catholics have to accept it or maybe the whole doctrine of Popish Infallibility is in jeopardy.
Er, not. You might check up on exactly what it is that Papal Infallibility protects. It's not about every random thing that a Pope thinks or says.
If you will review the doctrine of infallibility, you will see that it is used very infrequently --- the last time was in 1950 with Pope Pius XII's Munificentissimus Deus statement.
In 2005 Pope Benedict XVI remarked, "The Pope is not an oracle; he is infallible in very rare situations, as we know".
Pope John XXIII once stated it with a humorous twist: "I am only infallible if I speak infallibly but I shall never do that, so I am not infallible".`
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See, now you just ruined a perfectly good bash Francis thread with your dash of anti-Catholicism.