Not all Israeli people agree with their government's bullshark.
WW2/Holocaust was 70 years ago, Israel-Palestine is ongoing.
My attitude to Israel-Palestine is pretty much the same as my attitude to South Africa in the 1980s and I would have thought the same thing about signing a South African professional back then. I didn't say blackball him or harass him, but I'd want him to answer some tough questions.
...and therefore, by extension of that logic, you'd be keen for any Kiwi footballer signed to answer some tough questions about the atrocities during the Maori Wars?
Or, if it has to be ongoing to qualify, you'd want any Australian footballer signed to answer some tough questions over the refugee detention camps including, but not limited to, on Nauru?
I think what puzzles some of us is (a) why a footballer should be held to account for all (or any for that matter) of the policies of the government of the country they are from (particularly if they are making their career playing abroad), and (b) why Israeli footballers in particular need to face tough questions when you are not compaigning for footballers from other countries with skeletons in the closet to face similar questions.