In my opinion, that's the whole point of this silly idea. The people who push this stuff aren't really trying to get "more justice". They are just trying to weaken the Catholic Church by making people avoid one of the sacraments.
I say that, and I'm not Catholic. But I see "do-gooders" trying to dilute a very old religious practice and it bothers me, even if it isn't my religious practice.
That's always a big part of it. Leftists cannot abide any secrets withheld from from the State.