China and Russia don't sell weapons to Israel (though China does sell surveillance technology to them). Not sure why you didn't quickly fact check this beforehand.
https://en.wikipedia.org/wiki/Countries_supplying_arms_to_Israel

Israel depends on America itself to continue its existence, not mere arms sales. If any of these other countries were literally wiped off the map, Israel would continue to exist because America would still defend it. If you think that none of your political parties will end support for Israel, even though there are ones that would do it, at least vote for the party that will destroy America the quickest.