Your point rests on the premise that institutions carry some kind of permanent guilt with them that delegitimises what they stand for. There's a number of issues with that, not least of which is the fact that institutions are not neat abstractions that behave uniformly without contradiction or change.

This creates two issues for an institution as old and decentralised as the Catholic Church. Firstly, the church is not a corporation where processes and orders dictate the behaviour of employees and people are fired for insubordination. In practice it is highly decentralised, and the idea that it is centrally run by a single old man at the end of his life in Rome without access to a computer is farcical.

Secondly, the church is the oldest institution in the world. Even the United States, a 'modern' institution by historical standards, has to contend with the slaughter of native peoples, the enslavement of thousands of innocent human beings, countless wars (many of which have little to no serious justification), the destruction of the environment etc etc etc. And the US is by far the most just superpower by historical standards. In spite of all those things most people will agree that it has been an unprecedented force for human progress in its (relatively) short history.

Your comment was probably just a throwaway insult that didn't warrant such a detailed response but comments like it really irk me for some reason.