Biden is the Catholic President the modern Catholic Church deserves

Yep.  As the most prominent Catholic in the world aside from the Pope, his first days have been spent undoing most anything Trump did, including broadening the ability to abort pregnancies by the tens of millions in order to sustain our sex culture with a giant 'Catholics can do this and it's awesome' stamp.  

No, Catholics upset about this haven't been paying attention to our own Church.  This isn't Medieval or Renaissance problems with power hungry bishops and popes with concubines.  It's not where the basics are assumed by the masses, even if we have to watch out for the corrupt summoners.  

This is a point where a sizeable number of Church leaders, and a majority of Catholics in many parts of the world, simply no longer believe what the Church has taught for 2000 years. They don't believe in Christianity anymore.  Poll after poll finds that they don't believe the Eucharist is more than bread and wine.  They don't think the Trinity is anything but a Christian opinion about God (hence the easy ability to say things like 'Muslims worship the same God, no questions').  They don't believe in actual miracles, the Virgin Birth, or even the Resurrection. This doesn't count their complete support for the moral and social sins promoted by the secular world. 

In these things, when they speak of them at all, they sound more like agonistic and atheist skeptics than traditional Christians. Many just come out and say they don't believe it at all.  A friend of mine gave me a book on the Bible.  He wanted me to use it to do a lecture series at his parish.  Priest though he was, and rather conservative at that, I was stunned when I read through the text.  It was as 'critical scholarship' as any atheist ever proposed, rejecting almost everything except the Resurrection and the Virgin Birth.  The whole Old Testament was reduced to Peter Pan and Harry Potter.  He even accepted the rather recent development in skeptical scholarship that most of the New Testament was written centuries after the fact, the Church merely lied about their dates to buttress the idea of apostolic authorship.  And from what I could tell, the author himself wasn't some flaming leftist liberal type!

That's the Church today.  Everything it does - like most Mainline Protestants and a growing number of mainstream evangelicals - screams WE DON'T REALLY BELIEVE IT EITHER!  And the world is watching and the young are hearing loud and clear.  Oh they may appreciate the constant acquiescing to the modern nihilism and narcissism satiated only by meaningless sex and jaded hedonism.  But they also see that Christians running about with all those prayers on their lips don't believe it any more than they believe there was some big war in a galaxy far, far away.  

After all, if the distinction of the modern Church is how freely it will change its teachings to keep up with the latest Jonses, people begin to assume any other teachings not yet changed are nonetheless up for grabs.  And that might even include rethinking the very existence of a God.  Hence the gushing numbers of people abandoning the faith and and leaving it once and for all.