You have set up a straw man and rebuked it well, but it is not the argument on the table, and worse, your own proof text undoes your case.
You say "the good soil is simply the heart that receives and bears fruit" as though reception and endurance are the same thing, and that anyone who "sees and perceives" is safe by definition. But Jesus does not teach that. Look at the stony ground:
"He that received the seed into stony places, the same is he that heareth the word, and anon with joy receiveth it; Yet hath he not root in himself, but dureth for a while: for when tribulation or persecution ariseth because of the word, by and by he is offended." (Matthew 13:20-21)
That is not the wayside hearer who never receives the word at all. This is a hearer who understands enough to receive it with joy. Luke's account makes the danger even plainer:
"They on the rock are they, which, when they hear, receive the word with joy; and these have no root, which for a while believe, and in time of temptation fall away." (Luke 8:13)
Luke does not say these people refused the word. He says they believe. For a while. And then they fall away. That single verse is the end of your claim that "nothing in the passage teaches that someone who sees and perceives is still doomed." Scripture says exactly that, in so many words, about a hearer who believes and later falls.
So the four soils are not reducible to "refuses the word" versus "receives and bears fruit," as though there are only two real outcomes wearing four costumes. There is a soil that receives, believes, and still does not endure. That is the whole point of Christ warning of tribulation and the cares of this world choking it out, in the thorny ground as well: "and he becometh unfruitful" (Matthew 13:22), a man who heard, understood enough to grow at all, and still bore nothing in the end.
You are right that Isaiah 6 describes judicial hardening on those who reject, and right that the disciples understood because they came to Him. No one here denies that. But you have argued past the actual danger the parable warns of, which is not limited to outright refusal. The stony and thorny ground are not the wayside. They heard. They received. They are still lost.
If perceiving guaranteed making it, Christ would have had no reason to warn the stony ground hearers at all. He warned them because reception without endurance ends in falling away. That is not a "secret hierarchy of insider layers" invented by me. It is the text, plainly read, with nothing added and nothing softened.
