No, the donators gave you the money to use as you see fit. You're not betraying their trust: you're betraying your government, by funding a movement with aims inimical to them.
A relevant statute in the US is the USA PATRIOT Act [0], specifically Title III, which deals with "International money laundering abatement and terrorist financing". It absolutely does restrict transmission of clean money to non-favoured political entities, often in the same breath as it forbids actual money laundering. It does not forbid withdrawing cash from an ATM, but it does forbid a bank from issuing you an ATM card if they should have guessed you would use the money for the wrong purposes.
A relevant statute in the US is the USA PATRIOT Act [0], specifically Title III, which deals with "International money laundering abatement and terrorist financing". It absolutely does restrict transmission of clean money to non-favoured political entities, often in the same breath as it forbids actual money laundering. It does not forbid withdrawing cash from an ATM, but it does forbid a bank from issuing you an ATM card if they should have guessed you would use the money for the wrong purposes.
[0] https://www.congress.gov/107/plaws/publ56/PLAW-107publ56.htm