Our Holy Spirit answers:
Dear ones, governments are only legitimate in God's eyes if their activities are funded voluntarily. Taxation is disguised slavery, and slavery is not legitimate.
That said, the anti-Israel mindset of leftists is enormously self-defeating. There is no redeeming value in hatred. Hatred gnaws away at reason and love, leaving one surrounded in a cloud of darkness. Almost nobody is attracted to such an anti-life appearance. Would a sane man or woman choose to follow leaders who worship death?