The problem for me is when the Church sanctions unworthy reception by apparent removal of all impediments so that one mistakenly feels worthy…“Don’t worry about repentance, because most likely, you’ve not even sinned because you’re not culpable. After all, you can’t help it.”
I don’t believe this is a fair representation of what the Magisterium is teaching.
It may well be what young liberal priests imprudently advise.
The two Canons involved are very clear.
One places a responsibility on the individual to approach or not based on their consciousness of grave sin. Noone can absolve them of that responsibility, nor will any priest deny them Communion simply because that judgement can only be made between God and the communicant.
Even if a priest suggests (sometimes rightly) from his understanding of the revealed circumstances of this particular individual that grave personal sin is unlikely even though grave matter is present…a penitent must still examine their own conscience and follow the verdict of their own conscience.
If they blindly follow the priest without doing so then that is surely culpable - and I would not think that even the foolish priests you speak of would deny the necessity of always personally reflecting on all counsel and making one’s own personal decision in this regard before one’s own conscience.
The other Canon places responsibility on the priest to deny giving Communion to approaching communicants over specific and well known grave public objective disorders if certain additional conditions are met (based on the disposition of the Communicant).
These objective conditions have nothing to do with directly identifying the presence of sanctifying grace…though those with sanctifying grace are unlikely to have a poor disposition (i.e. flaunting, stubbornness etc).
Some of these criteria are obviously a prudential judgement and may differ from priest to priest.
Currently we appear to be in a situation where the mere existence of an ongoing sexual relationship, in some very few somewhat unusual cases, is no longer considered a category of objective sin that essentially requires a priest to deny Communion always and everywhere by that reason alone.