@Brand X,
Standing up to Russia means not letting them to get away with meddling in our elections.
If you are for America, you would be upset with the idea of Russia meddling in our elections. If you are defending Russia after they used a cyber-attack to meddle with our election, then you aren't acting as if you are for America.
Putin is not American, and often acts against the interests of America in areas like Syria, NATO and the Ukraine.