Let me start with I am not a Catholic, however, I am married to one and raised three kids in the catholic church.
Today the US catholic Bishops decided to deny communion to Democratic politicians including President Joe Biden because of their support for abortion. For non Catholics to deny the Eucharist is a significant penalty to a faithful catholic (President Biden qualifies as a faithful catholic).
This is an overtly political act, from a group of men who are bluntly not free from guilt.
Firstly no Bishop has denied any Republican communion for being divorced and re married (Gingrich) or for supporting family separation at the border or a whole range of other “sins”. this is quite simply an overt political act based on a single issue. more importantly this is the same group who continue to protect predictor priests. I am sure everyone has read the wide range of stories about the catholic church and abuse of minors, including death of children in catholic homes, serial sexual abuse of boys, girls and nuns, coverups, obstruction and lies.
Despite all the revelations you have heard less than half of dioecies in the US have actually been investigated and none have cooperated when actually investigated. the Church (the Bishops) have taken active steps to protect their assets and deny access to their files to the victims of abuse.
These are the Men who have decided to die on the cross of abortion, to deny women’s rights , to punish those who support choice. because any vindictive politician could simply start a congressional or DOJ investigation into the Catholic Bushels and their culpability in sexual abuse and the coverup of sexual abuse,
One would thing that a little self interest would ensure these guys don’t act so destructively but introspection and humility has never been the Strong point of Bishops and Cardinals.