LLMs suck at basic logic, period.

So do children. By your argument children aren't conscious.

but if I told you "trees are living beings. Some living beings can bite. So some trees can bite.", you would definitively feel like something is "off".

If I told you "there is a magic man that can visit every house in the world in one night" you would definitely feel like something is "off".
I am sure at some point a younger sibling was convinced "be careful, the trees around here might bite you."

Your arguments fail to pass the "dumb child" test: anything you claim an AI does not understand, or cannot reason, I can imagine a small child doing worse. Are you arguing that small, or particularly dumb children aren't conscious?

This factor doesn't exist when dealing with LLMs though.

Begging the question. None of your arguments have shown this can't be a factor with LLMs.

The argument itself is not flawed, just phrased poorly.

If something is phrased poorly is that not a flaw?