A lot going on here. At least half of which is bullshit pandering. What constitutes a “pro-Hamas radical?” Inquiring minds would like to know.
That's actually a low key problem for the Republicans. There's this group of randos going around college campuses being very noisy about their displeasure with the amount of civilian casualties in Gaza, and how much they are upset with Netanyahu or Israel, however you frame it. Since that crew is designated as "The extreme left radicals", Trump has to take the opposite position, with his statements "If you are Jewish, and you support Biden/Harris, then you hate your own religion".
The issue being that huge numbers of Trump's extremist base is virulently anti-semitic.