All denominations of Judaism aside from a few Haredi sects and maybe extreme secularists recognize the modern state of Israel as a legitimate country. Many adherents may not like how certain aspects of it are run, but they hold not anything remotely like what the totality of a position would entail to be "anti-Israel". The general acceptance of the country is about as common knowledge in Judaic studies as anything, and is uncontentious. I challenge you to find otherwise.
Which is mostly irrelevant, given the large and diverse groups of secular Jews worldwide. More importantly, you've moved the goalposts from having to defend a fairly extreme statement to trying to defend something like "Jews are more likely than average to support the modern state of Israel", which is just kind of obvious.