For example, if you show solidarity for killed children in Gaza, that also means that you're by proxy pro-Hamas, because Palestine = Hamas. Thus you can not be pro-Israel, and must be anti-Israel.
Likewise we've come to the point where you can say: "I feel for the Israeli people after the October 7 attacks, but I don't like the Israeli government". You automatically get classified as something other than pro-Israel, and, thus anti-Israel.
The middle ground has eroded. And with the Trump administration being what it is, I have zero faith that they'll see it any other way.