On the meanings of the phrase, "From the river to the sea".

Some common uses of the phrase imply the elimination of Israel.

The actual words that MP Andy McDonald used do not imply that. To me, they seem to advocate having just one state in that region, a state of Israel-Palestine. That idea is not outrageous in principle, though I don't see how it could work, so I still advocate two states.

I think the Labour Party did wrong to treat him so harshly.

*As Gaza crumbles, those speaking up for innocent Palestinians are being silenced and sacked.*

This article asserts that McDonald was in fact advocating two states. It would be interesting to see the full text of his remarks.