well to begin with some of us believe this is no longer the Catholic Church but is the "Vatican 2 church" - it seems to have been taken over at the top, so much of its leadership is basically akin to agreeing with Biden on the issues, and in fact we think the elections since Vatican 2 have been fraudulent kind of like the 2020 elections were stolen (this viewpoint is generally called "sedevacantism")

Once that's understood it becomes easier to understand how "Catholic leaders" would be so careless about this topic

A "sedevacantist" site has noted that popes in the past talked about the importance of consent in medical treatment:

In the first place it must be assumed that, as a private person, the doctor can take no measure or try no course of action without the consent of the patient. The doctor has no other rights or power over the patient than those which the latter gives him, explicitly or implicitly and tacitly. On his side, the patient cannot confer rights he does not possess. In this discussion the decisive point is the moral licitness of the right a patient has to dispose of himself [=make decisions regarding himself]. Here is the moral limit to the doctor’s action taken with the consent of the patient.

source and other post on the topic:

https://communities.win/c/Christianity/p/13zNAv6dkO/novusordowatch-sedevacantist-cat/c