Your harsh judgements about good monks are shocking and de-meritorious. Your statement would easily apply to a sotapanna, a sakadagamin, an anagamin, an arahant, even the Lord himself.
Yes there is abundant evidence that monasteries under the Buddha’s direct guidance routinely stored up food. For example, it is a parajika offense for a monk to steal food from the Sangha’s food storage.
The Vinaya offense is for a monk to store food for himself; storing for the community is a different matter. (The rules of offering still apply, so laity are involved.) Self-storing of food isn’t a breach of human ethics but a minor breach of practical rules guiding the holy life. (The 1st offender was an arahant.)
With or without food stored away for the Sangha, the Buddha strongly advocated for monks to give laity the blessing of opportunities to give alms to Sangha. There is no evidence to suggest that the Buddha ever said for the Sangha’s larders to be checked prior to going out on almsround.
A little bit of knowledge can be dangerous. You have missed much of the vibrant reality of the holy life, substituting some limited dry ideas, then harshly you judge those who don’t live up to your idiosyncratic high standards, even using demeaning language. In so doing you misrepresent the Blessed One and earn suffering, starting with the suffering of a fault-finding mind.
FWIW, I myself give away leftovers after lunch to start each day fresh. My alms-seeking is done with a pretty much empty larder, which is very convenient whenever an American unfamiliar with our traditions asks in amazement, “But don’t you have any food?”
Yet I would not dare to judge monastics who have less support for exercising this level of freedom. I too was unable to do this, prior to establishing my own Vihara on my own terms. Some people have gossipped about me for sticking to this principle. (Lay supporters from a certain Buddhist background absolutely insist that their excess donations be kept for later use and would take great offense if their donations were given away or tossed. They actually said things such as “The elder great monks of xyz monastery accept groceries, they are respected, venerated; who does she think she is!”)
Let’s leave behind the harsh judgements. Anyone sincerely trying to live the holy life despite the enormous modern stressors definitely deserves respect.
[Minor edits to add a paragraph break and this note.]