Level sight is what we're dealing with, so how about you address it.
No, we are dealing with if you would see an edge of a round object.
That is not intrinsically tied to level sight.
It has also already been dealt with, repeatedly, with you ignoring it repeatedly.
Once more, at an elevation of 2 m, the horizon would be ~2.7 arc minutes below level. That is pretty much indistinguishable from level, and kills your argument.
The fact that it is observed to be lower the higher you go further kills your argument.
But you moved on from simply claiming that the horizon wouldn't be dead level for a RE, and instead started falsely claiming you would not see the edge at all, that a horizon would not exist on a RE at all as you would see nothing but sky. You repeatedly refused to answer where such a horizon would appear on a RE other than saying that it wouldn't exist. As otherwise, your arguments are all dead.
That is because once you admit there is an edge of a RE, a division between where you can look at the land/sea and where you can't and instead only get sky, the question then becomes where is it. And when you do the math, that turns out to be very close to level and thus would likely be seen when looking level.
So this is well beyond just talking about level.
This is now talking about if a round object, like the very real round Earth, has a horizon, if it has an edge between where you see it and where you see what surrounds it (e.g. the sky). And that is not tied to level.
And that means I am dealing with what I KNOW I am standing on. A round, roughly spherical, visible object.
I see no reason why a RE should be invisible.
I see no reason why a RE should magically behave differently to a basketball and magically not have an edge.
I provided the math to calculate where the horizon would appear. I pointed out just how close that would put it to level, and thus match what is observed. I provided pictures showing that it drops as you get higher.
So I have dealt with it.
Your straw-man of the RE has been refuted.
Unless you are looking at with an extremely small FOV, or from very far away, if you are looking level, you will see the horizon on the RE. All you have offered in response to back up your strawman is repeatedly asserting the same strawman.
Your nonsense has been dealt with, and not just by me. Your claims have been addressed, and not just by me.
Now it is time for you to start justifying your claims, to start answering the questions that are asked of you instead of continually deflecting.
So, when you are looking straight down at a round Earth, do you think you see it, or is it invisible?
Can you actually answer that question, or do you need to continually dishonestly deflect to pretend you can disprove the RE, when in reality you have nothing.
So again, looking straight down towards a RE, do you see Earth, or do you just see sky?
If you think the latter, then why doesn't the same apply to a basketball.