Though that chant is used by different people for different reasons, it's origins were refering to the Palestinian borders drawn by 1949 armstice agreement following the Arab-Israeli war. Of course to Israel and allies, this solely translates to the end of Israel as a state. And to be fair, some people I'm sure do mean it that way, but certianly not all. I'd say the majority don't mean that. So, still, nothing about this conflict is simple.
This also is a good time to mention that Visegrad24 has some pretty clearly defined political leanings. That tweet's (X's?) assertion is one example of that.