I don't know much about Charlie Kirk except what I've read recently. But he does/did seem to be part of a growing element of the right in the USA who stand against Israel and Netanyahu specifically. And while I support that, I don't think it's necessarily to support Palestinians, but more as an America First policy.
In that context, "of all people" makes sense to me. I too have been surprised by the move, of some on the right, against Israel, considering their almost unanimous support previously.
> I too have been surprised by the move, of some on the right, against Israel, considering their almost unanimous support previously
The right is not a monolith. Various elements on the right have always been anti-Israel, from the non-interventionists to the straight-up racists. Kirk was one of the former.
Kirk is on video making a joke about how he used to tell leftists, "they would throw you off a tall building in Gaza," but now there are no tall buildings in Gaza (hyuk hyuk), because of those "stupid Muslims attacking Jews."
As the genocide has become more and more indefensible, many right wing water carriers (also including Tucker Carlson) have been peeling off and voicing occasional (but essentially harmless) criticisms of the relationship. It's more cynicism than principle.
For context these are the questions asked since obviously this claim will change a lot based on questions. I wouldn't say it's terribly surprising based on my experiences, I've met Republicans against a lot of these things. I'm also wondering a bit how they got their sample since they had way more Democrats than Republicans and how representative it is (it also didn't close to match the racial makeup of the US). Not hating on the study, I didn't spend enough time reading it to know it's effectiveness, mainly the actual questions seemed important.
Item 1) Abortion should be illegal.
Item 2) The government should take steps to make incomes more equal.
Item 3) All unauthorized immigrants should be sent back to their home country.
Item 4) The federal budget for welfare programs should be increased.
Item 5) Lesbian, gay and trans couples should be allowed to legally marry.
Item 6) The government should regulate business to protect the environment.
Item 7) The federal government should make it more difficult to buy a gun.
Item 8) The federal government should make a concerted effort to improve social and economic conditions for African Americans.
Edit: to be clear I read the study and they used Prolific (https://www.prolific.com/) to get the participants but that means nothing to me.
In that context, "of all people" makes sense to me. I too have been surprised by the move, of some on the right, against Israel, considering their almost unanimous support previously.